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thefirststarr · 2 months
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It’s oh-so-easy to be mesmerized by this spiral galaxy known as NGC 4254. Follow its clearly defined arms, which are brimming with stars, to its center, where there may be old star clusters and, sometimes, active supermassive black holes. NASA’s James Webb Space Telescope delivered highly detailed scenes of this spiral galaxy in a combination of near- and mid-infrared light.
Image Credit & Copyright: NASA, ESA, CSA, STScI, Janice Lee (STScI), Thomas Williams (Oxford), and the PHANGS team
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WASHINGTON, Jan 29 (Reuters) — A batch of newly released images captured by the James Webb Space Telescope show in remarkable detail 19 spiral galaxies residing relatively near our Milky Way, offering new clues on star formation as well as galactic structure and evolution.
The images were made public on Monday by a team of scientists involved in a project called Physics at High Angular resolution in Nearby GalaxieS (PHANGS) that operates across several major astronomical observatories.
The closest of the 19 galaxies is called NGC5068, about 15 million light years from Earth, and the most distant of them is NGC1365, about 60 million light years from Earth.
A light year is the distance light travels in a year, 5.9 trillion miles (9.5 trillion km).
The James Webb Space Telescope (JWST) was launched in 2021 and began collecting data in 2022, reshaping the understanding of the early universe while taking wondrous pictures of the cosmos.
The orbiting observatory looks at the universe mainly in the infrared.
The Hubble Space Telescope, launched in 1990 and still operational, has examined it primarily at optical and ultraviolet wavelengths.
Spiral galaxies, resembling enormous pinwheels, are a common galaxy type. Our Milky Way is one.
The new observations came from Webb's Near-Infrared Camera (NIRCam) and Mid-Infrared Instrument (MIRI).
They show roughly 100,000 star clusters and millions or perhaps billions of individual stars.
"These data are important as they give us a new view on the earliest phase of star formation," said University of Oxford astronomer Thomas Williams, who led the team's data processing on the images.
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"Stars are born deep within dusty clouds that completely block out the light at visible wavelengths - what the Hubble Space Telescope is sensitive to - but these clouds light up at the JWST wavelengths.
We don't know a lot about this phase, not even really how long it lasts, and so these data will be vital for understanding how stars in galaxies start their lives," Williams added.
About half of spiral galaxies have a straight structure, called a bar, coming out from the galactic center to which the spiral arms are attached.
"The commonly held thought is that galaxies form from the inside-out, and so get bigger and bigger over their lifetimes.
The spiral arms act to sweep up the gas that will form into stars, and the bars act to funnel that same gas in towards the central black hole of the galaxy," Williams said.
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The images let scientists for the first time resolve the structure of the clouds of dust and gas from which stars and planets form at a high level of detail in galaxies beyond the Large Magellanic Cloud and Small Magellanic Cloud, two galaxies considered galactic satellites of the sprawling Milky Way.
"The images are not only aesthetically stunning, they also tell a story about the cycle of star formation and feedback, which is the energy and momentum released by young stars into the space between stars," said astronomer Janice Lee of the Space Telescope Science Institute in Baltimore, principal investigator for the new data.
"It actually looks like there was explosive activity and clearing of the dust and gas on both cluster and kiloparsec (roughly 3,000 light years) scales.
The dynamic process of the overall star formation cycle becomes obvious and qualitatively accessible, even for the public, which makes the images compelling on many different levels," Lee added.
Webb's observations build on Hubble's.
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"Using Hubble, we would see the starlight from galaxies, but some of the light was blocked by the dust of galaxies," University of Alberta astronomer Erik Rosolowsky said.
"This limitation made it hard to understand parts of how a galaxy operates as a system. With Webb's view in the infrared, we can see through this dust to see stars behind and within the enshrouding dust."
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apod · 1 year
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2023 February 18
Barred Spiral Galaxy NGC 1365 from Webb Image Credit: NASA, ESA, CSA, Janice Lee (NOIRLab) - Processing: Alyssa Pagan (STScI)
Explanation: A mere 56 million light-years distant toward the southern constellation Fornax, NGC 1365 is an enormous barred spiral galaxy about 200,000 light-years in diameter. That's twice the size of our own barred spiral Milky Way. This sharp image from the James Webb Space Telescope's Mid-Infrared Instrument (MIRI) reveals stunning details of this magnificent spiral in infrared light. Webb's field of view stretches about 60,000 light-years across NGC 1365, exploring the galaxy's core and bright newborn star clusters. The intricate network of dusty filaments and bubbles is created by young stars along spiral arms winding from the galaxy's central bar. Astronomers suspect the gravity field of NGC 1365's bar plays a crucial role in the galaxy's evolution, funneling gas and dust into a star-forming maelstrom and ultimately feeding material into the active galaxy's central, supermassive black hole.
∞ Source: apod.nasa.gov/apod/ap230218.html
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cendrillonmedousa · 2 years
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Notable, Present-day, Radical Feminists
As a second wave feminism, we assume that radical feminists are hard, if not impossible, to find in today's world. Here is a list of notable women you can still interact with today.
Chude Pam Allen, co-founder of New York Radical Women
Ti-Grace Atkinson, author of Amazon Odyssey
Kathleen Barry, co-founder of the Coalition Against Trafficking in Women
Linda Bellos, first Black lesbian member of Spare Rib feminist collective
Julie Bindel, co-founder of Justice for Women
Jenny Brown, author of Birth Strike: The Hidden Fight Over Women's Work
Professor Judith C. Brown, pioneer in the study of lesbian history
Susan Brownmiller, author of Against Our Will: Men, Women, and Rape
Professor Phyllis Chesler, co-founder of Association for Women in Psychology
D.A. Clarke, known for her development of feminist theory
Nikki Craft, creator of the Andrea Dworkin Online Library, Hustling the Left website, and No Status Quo website
Christine Delphy, co-founder of the French Women's Liberation Movement
Professor Gail Dines, author of Pornland: How Porn Has Hijacked Our Sexuality
Melissa Farley, founder and director of Prostitution Research and Education
Marilyn Fyre, author of The Politics of Reality: Essays in Feminist Theory
Carol Hanisch, best known for "the personal is political"
Merle Hoffman, co-founder of the National Abortion Federation
Professor Shelia Jeffreys, author of The Spinster and Her Enemies
Lierre Keith, founder of Women's Liberation Front
Anne Koedt, author of The Myth of the Vaginal Orgasm
Marjorie Kramer, editor of Woman and Art Quarterly
Professor Holly Lawford-Smith, author of Gender-Critical Feminism
Dr. Catharine Alice MacKinnon, author of Sexual Harassment of Working Women: A Case for Sex Discrimination
Robin Morgan, creator of Sisterhood Is anthologies
Dr. Janice G. Raymond, author of The Transsexual Empire
Kathie Sarachild, coiner of term "Sisterhood is Powerful"
Alix Kates Shulman, author of Memoirs of an Ex-Prom Queen
Gloria Steinman
Michele Faith Wallace, author of Black Macho and the Myth of the Superwoman
Dr. Marilyn Salzman Webb, co-founder of the first feminist consciousness-raising groups in Chicago and Washington D.C.
Harriet Wistrich, founding director of Centre for Women's Justice
Laura X, led the campaign behind making marital and date rape a crime in over twenty countries
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NASA’s Webb Reveals Intricate Networks of Gas, Dust in Nearby Galaxies Peering through obscuring clouds of dust, the MIRI instrument has revealed networks of giant cavities and blown-out bubbles in the gaseous arms of distant galaxies. Researchers using NASA’s James Webb Space Telescope are getting their first look at star formation, gas, and dust in nearby galaxies with unprecedented resolution at infrared wavelengths. The data has enabled an initial collection of 21 research papers which provide new insight into how some of the smallest-scale processes in our universe – the beginnings of star formation – impact the evolution of the largest objects in our cosmos: galaxies. The largest survey of nearby galaxies in Webb’s first year of science operations is being carried out by the Physics at High Angular resolution in Nearby Galaxies (PHANGS) collaboration, involving more than 100 researchers from around the globe. The Webb observations are led by Janice Lee, Gemini Observatory chief scientist at the National Science Foundation’s NOIRLab and affiliate astronomer at the University of Arizona in Tucson. The team is studying a diverse sample of 19 spiral galaxies, and in Webb’s first few months of science operations, observations of five of those targets – M74, NGC 7496, IC 5332, NGC 1365, and NGC 1433 – have taken place. The results are already astounding astronomers. “The clarity with which we are seeing the fine structure certainly caught us by surprise,” said team member David Thilker of Johns Hopkins University in Baltimore, Maryland. “We are directly seeing how the energy from the formation of young stars affects the gas around them, and it’s just remarkable,” said team member Erik Rosolowsky of the University of Alberta, Canada. The images from Webb’s Mid-Infrared Instrument (MIRI) reveal the presence of a network of highly structured features within these galaxies – glowing cavities of dust and huge cavernous bubbles of gas that line the spiral arms. In some regions of the nearby galaxies observed, this web of features appears built from both individual and overlapping shells and bubbles where young stars are releasing energy. “Areas which are completely dark in Hubble imaging light up in exquisite detail in these new infrared images, allowing us to study how the dust in the interstellar medium has absorbed the light from forming stars and emitted it back out in the infrared, illuminating an intricate network of gas and dust,” said team member Karin Sandstrom of the University of California, San Diego. The high-resolution imaging needed to study these structures has long evaded astronomers – until Webb came into the picture. “The PHANGS team has spent years observing these galaxies at optical, radio, and ultraviolent wavelengths using NASA’s Hubble Space Telescope, the Atacama Large Millimeter/Submillimeter Array, and the Very Large Telescope’s Multi Unit Spectroscopic Explorer,” added team member Adam Leroy of the Ohio State University. “But the earliest stages of a star’s life cycle have remained out of view because the process is enshrouded within gas and dust clouds.” Webb’s powerful infrared capabilities can pierce through the dust to connect the missing puzzle pieces. For example, specific wavelengths observable by MIRI (7.7 and 11.3 microns) and Webb’s Near-Infrared Camera (3.3 microns) are sensitive to emission from polycyclic aromatic hydrocarbons, which play a critical role in the formation of stars and planets. These molecules were detected by Webb in the first observations by the PHANGS program. Studying these interactions at the finest scale can help provide insights into the larger picture of how galaxies have evolved over time. “Because these observations are taken as part of what's called a treasury program, they are available to the public as they are observed and received on Earth,” said Eva Schinnerer of the Max Planck Institute for Astronomy in Heidelberg, Germany, and leader of the PHANGS collaboration. The PHANGS team will work to create and release data sets that align Webb’s data to each of the complementary data sets obtained previously from the other observatories, to help accelerate discovery by the broader astronomical community. “Thanks to the telescope’s resolution, for the first time we can conduct a complete census of star formation, and take inventories of the interstellar medium bubble structures in nearby galaxies beyond the Local Group,” Lee said. “That census will help us understand how star formation and its feedback imprint themselves on the interstellar medium, then give rise to the next generation of stars, or how it actually impedes the next generation of stars from being formed.” The research by the PHANGS team is being conducted as part of General Observer program 2107. The team’s initial findings, composed of 21 individual studies, were recently published in a special focus issue of The Astrophysical Journal Letters. More About the Mission The James Webb Space Telescope is the world’s premier space science observatory. Webb will solve mysteries in our solar system, look beyond to distant worlds around other stars, and probe the mysterious structures and origins of our universe and our place in it. Webb is an international program led by NASA with its partners, ESA (European Space Agency), and CSA (Canadian Space Agency). MIRI was developed through a 50-50 partnership between NASA and ESA. NASA’s Jet Propulsion Laboratory led the U.S. efforts for MIRI, and a multinational consortium of European astronomical institutes contributes for ESA. George Rieke with the University of Arizona is the MIRI science team lead. Gillian Wright is the MIRI European principal investigator. Laszlo Tamas with UK ATC manages the European Consortium. The MIRI cryocooler development was led and managed by JPL, in collaboration with Northrop Grumman in Redondo Beach, California, and NASA’s Goddard Space Flight Center in Greenbelt, Maryland. TOP IMAGE....The Mid-Infrared Instrument (MIRI) on NASA’s James Webb Space Telescope took this image of NGC 1433, a barred spiral galaxy with a particularly bright core surrounded by double star-forming rings. The observations reveal cavernous bubbles of gas where forming stars have released energy. Credit: NASA, ESA, CSA, and J. Lee (NOIRLab). Image processing: A. Pagan (STScI) CENTRE IMAGHE....The spiral arms of galaxy NGC 7496 are filled with cavernous bubbles and shells overlapping one another in this image from MIRI. These filaments and hollow cavities are evidence of young stars releasing energy and, in some cases, blowing out the gas and dust of the interstellar medium surrounding them. Credit: NASA, ESA, CSA, and J. Lee (NOIRLab). Image processing: A. Pagan (STScI) LOWER IMAGE....In this MIRI image of galaxy NGC 1365, clumps of dust and gas in the interstellar medium have absorbed the light from forming stars and emitted it back out as infrared light. This illuminates an intricate network of cavernous bubbles and filamentary shells. Credit: NASA, ESA, CSA, and J. Lee (NOIRLab). Image processing: A. Pagan (STScI)
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Solar Opposites: Unleashed Character Theme Songs
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Mundane Terry - “Part of Me” from Disturbed
Super Shlorpian Korvo- “The Night” from Disturbed
Super Shlorpian Yumyulack- “Monster” from Imagine Dragons
Mundane Jesse- “In the Dark” from Birthday Massacre
Giant Mutant Pupa- “Godzilla Theme”
Were-Kraken Sonya- “This Moment” from Mimi Webb
Sexy Aqrabuamelu Phoebe- “Elastic Heart” from Sia
Gorgon Monica- “Black Mamba” from Aespan
Were-Spider Parker- “Black Widow” from Iggy Azaelia ft. Rita Ora
Werehog Principal Cooke- “Endless Possibilities” from Crush 40
Mutant Miss Frankie- “Roar” from Katy Perry
Goliath Cherie- “Heart Attack” from Demi Lovato
Werebat Montez- “Animal I Have Become” from Three Days Grace
Wererabbit Nova- “Part of Me” from Katy Perry
Werewolf Ms. Perez- “She-Wolf” from Sia
Mutant Octopus Mia- “Going Under” from Evanescence
Werefox Kevin - “Indestructible” from Disturbed
Vampire Mutant Jaime- “Forsaken” from Disturbed
Hellhound Darcy- “She-Wolf” from Shakira
Sweets Demon Sherbet- “Monster” from MIKA
Mutant Zombie Mark- “Rainy Day” from Ice Nine Kills
Weredragon Randall- “Monster” from Skillet
Mutant Lizard Janice- “Still Hungry” from Adelitas Way
Werecat Cheery- “Fearless” from Olivia Holt
Medusa Alice - “Monster” from Rihanna ft. Eminem
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awardseason · 1 year
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10th Annual Make-Up Artists & Hair Stylists Guild Awards — Film Winners
FEATURE-LENGTH MOTION PICTURES
Best Contemporary Make-Up “The Batman” (Naomi Donne, Doone Forsyth, Norma Webb, Jemma Carballo) “Everything Everywhere All At Once” (Michelle Chung, Erin Rosenmann, Dania A. Ridgway) — WINNER “The Menu” (Deborah LaMia Denaver, Mazena Puksto, Donna Cicatelli, Deb Rutherford) “Nope” (Shutchai Tym Buacharern, Jennifer Zide-Essex, Eleanor Sabaduquia, Kato De Stefan) “Spirited” (Monica Huppert, Autumn J. Butler, Vivian Baker)
Best Period and/or Character Make-Up “Amsterdam” (Nana Fischer, Miho Suzuki, Jason Collins) “Babylon” (Heba Thorisdottir, Shaunna Bren Chavez, Jean Black, Mandy Artusato) “Blonde” (Tina Roesler Kerwin, Elena Arroy, Cassie Lyons) “Elvis” (Shane Thomas, Angela Conte) — WINNER “Till” (Denise Tunnell, Janice Tunnell, Ashley Langston)
Best Special Make-Up Effects “The Batman” (Michael Marino, Mike Fontaine, Yoichi Art Sakamoto, Göran Lundström) “Black Panther: Wakanda Forever” (Joel Harlow, Kim Felix) “Elvis” (Mark Coulier, Jason Baird) “Roald Dahl’s Matilda the Musical” (Barrie Gower, Emma Faulkes, Chloe Muton-Phillips) “The Whale” (Adrien Morot, Kathy Tse, Chris Gallaher) — WINNER
Best Contemporary Hair Styling “The Batman” (Zoe Tahir, Melissa Van Tongeran, Paula Price, Andrea Lance Jones) “Black Panther: Wakanda Forever” (Camille Friend, Evelyn Feliciano, Marva Stokes, Victor Paz) — WINNER “Everything Everywhere All At Once” (Anissa E. Salazar, Meghan Heaney, Miki Caporusso) “Glass Onion: A Knives Out Mystery” (Jeremy Woodhead, Tracey Smith, Leslie D. Bennett) “The Menu” (Adruitha Lee, Monique Hyman, Kate Loftis, Barbara Sanders)
Best Period Hair Styling and/or Character Hair Styling “Amsterdam” (Adruitha Lee, Lori McCoy-Bell, Cassandra L. Russek, Yvette Shelton) “Babylon” (Jaime Leigh McIntosh, Ahou Mofid, Aubrey Marie) “Blonde” (Jaime Leigh McIntosh, Lynnae Duley, Ahou Mofid, Robert Pickens) “Elvis” (Shane Thomas, Louise Coulston) — WINNER “The Woman King” (Louisa Anthony, Jamika Wilson, Plaxedes Kelias, Charity Gwakuka)
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dillinger · 1 year
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AZZEDINE ALAÏA / ARTHUR ELGORT / FREEDOM
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Together, Azzedine Alaïa and Arthur Elgort shaped the freedom of the 80s. At the same time as the fashion designer saw his feminine ideal embodied in the street and by the ever-increasing number of clients, the photographer left the studios, took over the movement and the cities as a natural and new setting. Both actively contributed to renewing the representation of the now assertive, determined, independent woman. The exhibition presented at the Azzedine Alaïa Foundation compares timeless photographs essential to the designer’s iconography, as well as more confidential shots, with Alaïa’s most iconic clothes.
Elgort swapped his Polaroid for a Nikon. He developed a true passion for all types of new and vintage cameras whose techniques and unique features he appreciated. He became a master of the camera. The chief editor of Vogue, Alexander Liberman, saw a few photographs by the newcomer and encouraged him then introduced him to the editors of his illustrious magazine. He did his early shoots in collaboration with Polly Allen Mellen and Grace Coddington. Within a year he became famous. The paths of Azzedine and Arthur obviously ended up crossing in Paris. As they worked together on magazine shoots, Elgort and Alaïa shared a dislike for superfluous sets and props, which got in the way of Elgort’s photographic vision and Alaïa’s sculptural creations.
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His black and white photos were intended to look like snapshots. He preferred explosive movement to the clichéd poses of fashion models. He opened the windows of studios to let in the light and turned the street into his theatre. Alaïa instinctly identified not only with his innovative but rigorous approach. When the images were published, it was hard to tell who was acting as a foil for whom: was it the joyful photography that invited to garment to move, or was it the figure-hugging, suggestive dress that provided the movement captured in the image? The models captured by Elgort’s lens and dressed by Alaïa became the ambassadors for new forms of expression where two artistic approaches came together but never clashed. Linda Spierings, Jeny Howarth, Janice Dickinson, Bonnie Berman, Veronica Webb, Frederique Van der Wal, Naomi Campbell, Christy Turlington, Cindy Crawford, Linda Evangelista, Stephanie Seymour were like divinities dancing on the frieze created by Alaïa and Elgort.
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This osmosis consists of a unique exhibition in Paris dedicated to photography and fashion, whose revival was orchestrated by Alaïa and Elgort. Playfulness, intuition, and spontaneity were at work here. The future showed that this unbridled game would mark a new chapter in fashion photography, demystifying couture creations to bring them within everyone’s reach. Arthur Elgort was born in New York. Azzedine Alaïa in Tunis. Both hoped that the practise of official art would guide their destiny. Elgort aspired to become a painter and enrolled at Hunter College. Alaïa learned the techniques of sculpture at the School of Fine Arts in Tunis. Elgort did not feel fulfilled in the discipline he had adopted. Similarly, Azzedine refused to become a secondrate sculptor. While dressmaking work for a select clientele allowed him to finance his studies, the clothes he made built him a reputation as a budding designer whose virtuosity was acknowledged. Alaïa took the risky decision of going to Paris and, in the mid-1950s. His story began.
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A similar story characterised the early career of Arthur Elgort. His artistic ambitions deviated when, in the 1960s, he went to a camera shop. He bought a Polaroid camera and learned how to use it, exploring his environment, showing his pictures to his teachers, and abandoning the past. It became clear that his future layed in lenses, dark rooms, and photographic papers. He would be a photographer. The way they evolved in their discipline in exile was different, however. While he was preparing to sit behind the gleaming sewing machines at the great Paris maisons, Alaïa’s destiny led him to become a mysterious and sought-after private couturier. Simone Zehrfuss, Louise de Vimorin, the Comtesse de Blégiers, Arletty commissioned bespoke garments from him. The women who tracked him down and recommended him gave him a greater understanding of the body and allowed him to perfect his technique. They would be his “school”, until Thierry Mugler, his leading admirer, persuaded him to become a fully-fledged fashion designer.
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spacenutspod · 2 months
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It’s oh-so-easy to be mesmerized by this spiral galaxy. Follow its clearly defined arms, which are brimming with stars, to its center, where there may be old star clusters and – sometimes – active supermassive black holes. NASA’s James Webb Space Telescope delivered highly detailed scenes of this and other nearby spiral galaxies in a combination of near- and mid-infrared light.NASA, ESA, CSA, STScI, Janice Lee (STScI), Thomas Williams (Oxford), and the PHANGS team NGC 4254, a spiral galaxy, is resplendent in orange and blue in this Jan. 29, 2024, image from the James Webb Space Telescope. This is one of 19 nearby spiral galaxies recently imaged by the telescope as part of the long-standing Physics at High Angular resolution in Nearby GalaxieS (PHANGS) program supported by more than 150 astronomers worldwide. Webb’s Near-Infrared Camera captured millions of stars in these images, which sparkle in blue tones, while the telescope’s Mid-Infrared Instrument data highlights glowing dust, showing us where it exists around and between stars. Explore the intricacies of spiral galaxies in this deep dive. Image Credit: NASA, ESA, CSA, STScI, Janice Lee (STScI), Thomas Williams (Oxford), and the PHANGS team
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jcmarchi · 3 months
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Stunning spiral galaxies seen in new James Webb Space Telescope images - Technology Org
New Post has been published on https://thedigitalinsider.com/stunning-spiral-galaxies-seen-in-new-james-webb-space-telescope-images-technology-org/
Stunning spiral galaxies seen in new James Webb Space Telescope images - Technology Org
A set of highly detailed images of 19 nearby spiral galaxies from NASA’s James Webb Space Telescope (JWST) have been publicly released. The suite of extraordinary images will provide several new puzzle pieces for astronomers and astrophysicists around the world. JWST’s NIRCam (Near-Infrared Camera) captured millions of stars in the images, which sparkle in blue tones. Some stars are spread throughout the spiral arms, but others are clumped tightly together in star clusters. The telescope’s MIRI (Mid-Infrared Instrument) data highlights glowing dust, showing where it exists around and between stars. It also spotlights stars that haven’t yet fully formed – they are still encased in the gas and dust that feed their growth, like bright red seeds at the tips of dusty peaks. JWST’s images also show large, spherical shells in the gas and dust.
Artistic conception of the James Webb Space Telescope. Image Credit: NASA GSFC/CIL/Adriana Manrique Gutierre.
Dr Thomas Williams, a postdoctoral researcher at the University of Oxford’s Department of Physics, led on the data processing for the latest set of images – some 18 months of work for a team of around 10 people. ‘The amount of detail in these images is overwhelming – in a good way,’ he explained. ‘It means that we may be able to fill in more of the gaps in our knowledge about the structure and evolution of galaxies, star formation, the life-cycle of stars and so much more.’
The images are part of a long-standing project, the Physics at High Angular resolution in Nearby GalaxieS (PHANGS) programme, which is supported by more than 150 astronomers worldwide. These latest images from JWST’s near- and mid-infrared spectrographs join the programme’s vast body of data gained from NASA’s Hubble Space Telescope, the Very Large Telescope’s Multi-Unit Spectroscopic Explorer, and the Atacama Large Millimeter/submillimeter Array. This means that researchers now have ground-based and space-based observation data in ultraviolet, visible, and radio light data as well as the near- and mid-infrared imagery.
The new collection of images of 19 spiral galaxies from the James Webb Space Telescope in near- and mid-infrared light. Millions of stars are captured in these images. Older stars appear blue and are clustered at the galaxies’ cores. Glowing dust around and between stars appears in shades of red and orange. Stars that haven’t yet fully formed and are encased in gas and dust appear bright red. Image credit: NASA, ESA, CSA, STScI, Janice Lee (STScI), Thomas Williams (Oxford), PHANGS Team.
Dr Williams added: ‘We have been hard at work preparing these data for science. This programme is a huge volume of data, and JWST is an extremely complex observatory. Working with the data so early in JWST’s lifecycle has been a privilege and a challenge, and we have learnt a lot that will improve JWST observations going forwards. The images, I think, speak for themselves: this is the sharpest view we have ever had of galaxies at these wavelengths.’
Evidence shows that galaxies grow from inside out: star formation begins at galaxies’ cores and spreads along their arms, spiralling away from the centre. The farther a star is from the galaxy’s core, the more likely it is to be younger. In contrast, the areas near the cores that look lit by a blue spotlight are populations of older stars while some galaxy cores are awash with pink and red diffraction spikes.
In addition to immediately releasing these images, the PHANGS team has also released the largest catalogue to date of roughly 100,000 star clusters. ‘The amount of analysis that can be done with these images is vastly larger than anything our team could possibly handle,’ said Professor Erik Rosolowsky from the University of Alberta, Canada, one of the project leads. ‘We’re excited to support the community so all researchers can contribute.’
Source: University of Oxford
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piyasahaberleri · 3 months
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NGC 1300 galaksisine ilişkin iki gözlem çapraz olarak bölünmüştür; James Webb Uzay Teleskobu'nun gözlemleri sol üstte ve Hubble'ın gözlemleri sağ altta olup çekirdek merkezi belirgin bir çapraz çubuk yapısına bağlıdır, 29 Ocak 2024'te yayımlanmıştır. — NASA, ESA, CSA, STScI, Janice Lee (STScI), Thomas Williams (Oxford), PHANGS EkibiJames Webb Uzay Teleskobu tarafınca çekilen bir takım yeni ve büyüleyici görüntü, Samanyolu'nun tanıdığından çekilen 19 sarmal gökadanın fotoğrafları yardımıyla bilim adamlarına yıldızların yaşam döngüsü hakkında yeni anlayış kapıları açtı.Detaylı fotoğraflar Yakın GalaxieS'de (PHANGS) Yüksek Açısal çözünürlükte Fizik projesinin uzmanları tarafınca gösterildi.Bilim adamlarına bakılırsa, 19 galaksi içinde uzak galaksi, Dünya'dan ortalama 60 milyon ışıkyılı uzaklıktaki NGC1365, en yakın galaksi ise ortalama 15 milyon ışıkyılı uzaklıktaki NGC5068'dir. Işığın bir yılda kat etmiş olduğu 5,9 trilyon mil mesafeye ışık yılı denir. 29 Ocak 2024'te gösterilen bu görüntü, yeni yakalanan 19 sarmal gökadayı gösteriyor. — James Webb Uzay Teleskobu internet sayfası Dikkat çekici James Webb Uzay Teleskobu 2021 senesinde fırlatıldı ve 2022 senesinde faaliyetlerine başladı. Derin uzaydan almış olduğu görüntülerle bilim adamlarının evrenin kökenine dair anlayışlarını büyük seviyede değiştirdi.Yakalanan sarmal galaksiler Samanyolu şeklinde yaygın bir türdür.Ekibin görüntüler üstünde veri işlemesine liderlik eden Oxford Üniversitesi'nden gökbilimci Thomas Williams şunları söylemiş oldu: "Bu veriler bizlere yıldız oluşumunun en erken aşamasına dair yeni bir görüş açısı kazandırdığı için önemlidir." Williams şunları kaydetti: "Yıldızlar, Hubble Uzay Teleskobu'nun duyarlı olduğu görünür dalga boylarındaki ışığı tamamen engellemiş olan tozlu bulutların derinliklerinde doğarlar, sadece bu bulutlar JWST dalga boylarında parlar. James Webb Uzay Teleskobu'nun 29 Ocak 2024'te gösterilen görüntüsü, NGC 1512'nin kızılötesi ışıkta parlayan parlak bir merkezi olan tozunu gösteren sarmal gökadayı gösteriyor. NASA, ESA, CSA, STScI, Janice Lee (STScI), Thomas Williams (Oxford), PHANGS Ekibi"Bu aşama hakkında pek bir şey bilmiyoruz, hatta gerçekte ne kadar sürdüğünü bile bilmiyoruz ve dolayısıyla bu veriler galaksilerdeki yıldızların yaşamlarına iyi mi başladığını idrak etmek için yaşamsal ehemmiyet taşıyacak."Gökbilimci ek olarak şunları açıkladı: "Genel olarak kabul edilen fikir, galaksilerin içten dışa doğru oluştuğu ve dolayısıyla yaşamları süresince giderek yetiştikleri yönündedir. Sarmal kollar, yıldızlara dönüşecek gazı süpürme görevi görür ve çubuklar da, yıldızları oluşturacak şekilde hareket eder. aynı gazı galaksinin merkezindeki kara deliğe doğru yönlendirin." Bu fotoğraflar, bilim adamlarının, yıldızların ve bitkilerin oluştuğu kaynak olan gaz ve tozdan oluşan bulutların yapısı ile alakalı suali fazlaca detaylı bir halde cevaplamasına olanak sağlamış oldu. Yüzü görünen sarmal gökada, NGC 5068, James Webb Uzay Teleskobu tarafınca 29 Ocak 2024'te. — NASA, ESA, CSA, STScI, Janice Lee (STScI), Thomas Williams (Oxford), PHANGS EkibiBaltimore'daki Uzay Teleskobu Bilim Enstitüsü'nün baş araştırmacısı ve gökbilimcisi Janice Lee şunları söylemiş oldu: "Görüntüler yalnız güzel duyu açıdan büyüleyici değil, bununla beraber genç yıldızlar tarafınca salınan enerji ve momentum olan yıldız oluşumu ve geri bildirim döngüsü hakkında da bir öykü konu alıyor" yıldızlar arasındaki boşluğa." Lee ek olarak şunları ekledi: "Aslına bakarsak hem küme hem de kiloparsek (kabaca 3.000 ışıkyılı) ölçeklerinde patlayıcı aktivite ve toz ve gazın temizlenmesi varmış şeklinde görünüyor. Genel yıldız oluşum döngüsünün dinamik süreci, yıldız oluşumu için bile açık ve niteliksel olarak erişilebilir hale geliyor. Bu da görüntüleri birçok değişik düzeyde ilgi çekici kılıyor." Alberta Üniversitesi gökbilimcisi Erik Rosolowsky, "Hubble'ı kullanarak galaksilerden gelen yıldız ışığını görebiliyorduk, sadece ışığın bir kısmı galaksilerin tozu tarafınca engellendi" dedi ve şunları ekledi: "Bu sınırlama, yıldızların iyi mi oluştuğunun bazı kısımlarını anlamayı zorlaştırdı." galaksi bir sistem olarak iş koşturmacasındadır. "Webb'in kızılötesi görüşü yardımıyla, bu tozun arkasını ve etrafını saran tozun içindeki yıldızları görebiliriz."
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averyblair · 4 months
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End-of-Year Reading List, 2023:
Below is a full list of the 64 books I read this year.
I was indiscriminate in what I counted towards this total. The only requirement was that it was a published book (self or traditional), and I finished it. There are 100 page novellas and 1000 page titans. Several were consumed as audiobooks. Some are fact and some are fiction. Each developed my own style and ability, and that is their relevance to this blog.
This list is alphabetical by author surname, and where an author has multiple books on the list, by release date.
An asterisk (*) indicates I re-read the book in 2023, but read it for the first time one or more years ago.
Flatland: a Romance of Many Dimensions - Edwin A. Abbott
The Amityville Horror - Jay Anson
Verona - Benedict Ashforth
The Silence of the Girls - Pat Barker
The Marriage Lie - Kimberly Belle
Hekla’s Children - James Brogden
The Secret Garden - Frances Hodgson Burnett
Tell No One - Harlan Coben
The Hunger Games* - Suzanne Collins
Catching Fire* - Suzanne Collins
Mockingjay* - Suzanne Collins
The Girl You Lost - Kathryn Croft
Great Expectations - Charles Dickens
The Wonder - Emma Donoghue
Sometimes Amazing Things Happen - Elizabeth Ford, MD
Gone* - Michael Grant
Hunger* - Michael Grant
Lies* - Michael Grant
Plague* - Michael Grant
Fear* - Michael Grant
Light - Michael Grant
The Torment of Rachel Ames - Jeff Gunhus
The Appeal - Janice Hallett
The Twyford Code - Janice Hallett
A Foxcub Named Freedom* - Brenda Jobling
The Grand Hotel - Scott Kenemore
Misery - Stephen King
Under the Dome - Stephen King
Fairy Tale - Stephen King
Yellowface - Rebecca F. Kuang
The Wall - John Lanchester
The Beekeeper of Aleppo - Christy Lefteri
Songbirds - Christy Lefteri
The Haunted - Bentley Little
The Handyman - Bentley Little
Lessons - Ian McEwan
Soon - Lois Murphy
Hamnet - Maggie O'Farrell
Eight Detectives - Alex Pavesi
3:00 a.m. - Nick Pirog
Tell Me Lies - J. P. Pomare
One Across, Two Down - Ruth Rendell
The Killing Doll - Ruth Rendell
The Water’s Lovely - Ruth Rendell
Liar’s Bench - Kim Michele Richardson
The Cove - L. J. Ross
The Creek - L. J. Ross
Elektra - Jennifer Saint
Frankenstein - Mary Shelley
Unnatural Causes - Dr Richard Shepherd
All the Murmuring Bones - A. G. Slatter
Dracula* - Bram Stoker
Spare - Prince Harry, Duke of Sussex
The Game You Played - Anni Taylor
The Hobbit - J. R. R. Tolkien
The Tale of Halcyon Crane - Wendy Webb
The Time Machine - H. G. Wells
The War of the Worlds - H. G. Wells
Foul Play Suspected - John Wyndham
The Day of the Triffids* - John Wyndham
The Chrysalids - John Wyndham
The Midwich Cuckoos - John Wyndham
Chocky* - John Wyndham
Tomorrow, and Tomorrow, and Tomorrow - Gabrielle Zevin
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ala18b-town · 4 months
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Our November Calendar Fundraiser was a hit! We raised $661 for the National Veterans Creative Arts Festival! From $1 to $121 donations, we will help Veterans enjoy a week of competition doing what they are skilled at and love! We had a total of 26 donors! Thank you for your donations: Jenny Tracy Sue Freeman Lisa Liford Janice Wampler Margaret Amos Hannah Amos Kathy Zimmerman Gary Black Twylla Webb Cherril Threte Leslie Wolfe Kim Strychalski Ellen Rinnert Penny Buttery Priscilla Cuevas Jan White Becky Kehrberg Amy Terry Mindy Kyle Kelly Lambe Vicki Swafford Jackie Farris Bobbie Krebbs Stephanie Barnes Nancy Martin Sarah Jascewsky Lori Williams GREAT WORK!!! Lori Williams Gary Black
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astroimages · 1 year
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JAMES WEBB MOSTRA PELA PRIMEIRA VEZ AS ENTRANHAS DAS GALÁXIAS ESPIRAIS
ASSINE JÁ O SPACE TODAY PLUS E TENHA ACESSO A CENTENAS DE CONTEÚDOS INÉDITOS E EM PORTUGUÊS SOBRE ASTRONOMIA E ASTRONÁUTICA POR APENAS R$29,90 POR MÊS!!! https://quero.plus OUÇA O PODCAST HORIZONTE DE EVENTOS: https://www.spreaker.com/episode/52441779 Pesquisadores usando o Telescópio Espacial James Webb da NASA/ESA/CSA estão observando pela primeira vez a formação de estrelas, gás e poeira em galáxias próximas com resolução sem precedentes em comprimentos de onda infravermelhos. Os dados permitiram uma coleção inicial de 21 trabalhos de pesquisa que fornecem uma nova visão sobre como alguns dos processos de menor escala no Universo – o início da formação estelar – impactam a evolução dos maiores objetos em nosso cosmos: as galáxias. O maior levantamento de galáxias próximas no primeiro ano de operações científicas do Webb está sendo realizado pela colaboração Phangs (Physics at High Angularresolution in Nearly Galaxies), envolvendo mais de 100 pesquisadores de todo o mundo. As observações do Webb são lideradas por Janice Lee, cientista-chefe do Observatório Gemini no NOIRLab da Fundação Nacional de Ciências dos EUA e astrônoma afiliada da Universidade do Arizona em Tucson. A equipe está estudando uma amostra diversificada de 19 galáxias espirais e, nos primeiros meses de operações científicas de Webb, foram feitas observações de cinco desses alvos - M74 , NGC 7496 , IC 5332 , NGC 1365 e NGC 1433 . Os resultados já estão surpreendendo os astrônomos. As imagens do Mid-Infrared Instrument ( MIRI ) de Webb revelam a presença de uma rede de características altamente estruturadas dentro dessas galáxias – cavidades brilhantes de poeira e enormes bolhas cavernosas de gás que revestem os braços espirais. Em algumas regiões das galáxias próximas observadas, esta teia de características aparece construída a partir de conchas e bolhas individuais e sobrepostas onde estrelas jovens estão liberando energia. As imagens de alta resolução necessárias para estudar essas estruturas há muito escapam dos astrônomos – isto é, até Webb entrar em cena. Os poderosos recursos de infravermelho do Webb podem perfurar a poeira para conectar as peças que faltam no quebra-cabeça. Por exemplo, comprimentos de onda específicos observáveis ​​pelo MIRI (7,7 e 11,3 mícrons) são sensíveis à emissão de hidrocarbonetos aromáticos policíclicos, que desempenham um papel crucial na formação de estrelas e planetas. Essas moléculas foram detectadas por Webb nas primeiras observações do programa PHANGS. FONTES: https://esawebb.org/news/weic2306/?lang https://iopscience.iop.org/collections/2041-8205_PHANGS-JWST-First-Results #JAMESWEBB #GALAXIES #UNIVERSE Estudar essas interações nas escalas mais finas pode ajudar a fornecer informações sobre a imagem maior de como as galáxias evoluíram ao longo do tempo. A equipe do PHANGS trabalhará para criar e liberar conjuntos de dados que alinhem os dados do Webb a cada um dos conjuntos de dados complementares obtidos anteriormente de outros observatórios, para ajudar a acelerar as descobertas da comunidade astronômica mais ampla. A pesquisa da equipe do PHANGS está sendo realizada como parte do programa Observador Geral 2107 . As descobertas iniciais da equipe, compreendendo 21 estudos individuais, foram publicadas recentemente em uma edição especial do The Astrophysical Journal Letters .
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NASA's Webb depicts staggering structure in 19 nearby spiral galaxies
It’s oh-so-easy to be absolutely mesmerized by these spiral galaxies. Follow their clearly defined arms, which are brimming with stars, to their centers, where there may be old star clusters and – sometimes – active supermassive black holes. Only NASA’s James Webb Space Telescope can deliver highly detailed scenes of nearby galaxies in a combination of near- and mid-infrared light – and a set of these images was publicly released today.
These Webb images are part of a large, long-standing project, the Physics at High Angular resolution in Nearby GalaxieS (PHANGS) program, which is supported by more than 150 astronomers worldwide. Before Webb took these images, PHANGS was already brimming with data from NASA’s Hubble Space Telescope, the Very Large Telescope’s Multi-Unit Spectroscopic Explorer, and the Atacama Large Millimeter/submillimeter Array, including observations in ultraviolet, visible, and radio light. Webb’s near- and mid-infrared contributions have provided several new puzzle pieces.
“Webb’s new images are extraordinary,” said Janice Lee, a project scientist for strategic initiatives at the Space Telescope Science Institute in Baltimore. “They’re mind-blowing even for researchers who have studied these same galaxies for decades. Bubbles and filaments are resolved down to the smallest scales ever observed, and tell a story about the star formation cycle.”
Excitement rapidly spread throughout the team as the Webb images flooded in. “I feel like our team lives in a constant state of being overwhelmed – in a positive way – by the amount of detail in these images,” added Thomas Williams, a postdoctoral researcher at the University of Oxford in the United Kingdom.
Follow the Spiral Arms
Webb’s NIRCam (Near-Infrared Camera) captured millions of stars in these images, which sparkle in blue tones. Some stars are spread throughout the spiral arms, but others are clumped tightly together in star clusters.
The telescope’s MIRI (Mid-Infrared Instrument) data highlights glowing dust, showing us where it exists around and between stars. It also spotlights stars that haven’t yet fully formed – they are still encased in the gas and dust that feed their growth, like bright red seeds at the tips of dusty peaks. “These are where we can find the newest, most massive stars in the galaxies,” said Erik Rosolowsky, a professor of physics at the University of Alberta in Edmonton, Canada.
Something else that amazed astronomers? Webb’s images show large, spherical shells in the gas and dust. “These holes may have been created by one or more stars that exploded, carving out giant holes in the interstellar material,” explained Adam Leroy, a professor of astronomy at the Ohio State University in Columbus.
Now, trace the spiral arms to find extended regions of gas that appear red and orange. “These structures tend to follow the same pattern in certain parts of the galaxies,” Rosolowsky added. “We think of these like waves, and their spacing tells us a lot about how a galaxy distributes its gas and dust.” Study of these structures will provide key insights about how galaxies build, maintain, and shut off star formation.
Dive Into the Interior
Evidence shows that galaxies grow from inside out – star formation begins at galaxies’ cores and spreads along their arms, spiraling away from the center. The farther a star is from the galaxy’s core, the more likely it is to be younger. In contrast, the areas near the cores that look lit by a blue spotlight are populations of older stars.
What about galaxy cores that are awash in pink-and-red diffraction spikes? “That’s a clear sign that there may be an active supermassive black hole,” said Eva Schinnerer, a staff scientist at the Max Planck Institute for Astronomy in Heidelberg, Germany. “Or, the star clusters toward the center are so bright that they have saturated that area of the image.”
Research Galore
There are many avenues of research that scientists can begin to pursue with the combined PHANGS data, but the unprecedented number of stars Webb resolved are a great place to begin. “Stars can live for billions or trillions of years,” Leroy said. “By precisely cataloging all types of stars, we can build a more reliable, holistic view of their life cycles.”
In addition to immediately releasing these images, the PHANGS team has also released the largest catalog to date of roughly 100,000 star clusters. “The amount of analysis that can be done with these images is vastly larger than anything our team could possibly handle,” Rosolowsky emphasized. “We’re excited to support the community so all researchers can contribute.”
The James Webb Space Telescope is the world's premier space science observatory. Webb is solving mysteries in our solar system, looking beyond to distant worlds around other stars, and probing the mysterious structures and origins of our universe and our place in it. Webb is an international program led by NASA with its partners, ESA (European Space Agency) and the Canadian Space Agency.
TOP IMAGE....The James Webb Space Telescope observed 19 nearby face-on spiral galaxies in near- and mid-infrared light as part of its contributions to the Physics at High Angular resolution in Nearby GalaxieS (PHANGS) program. PHANGS also includes images and data from NASA’s Hubble Space Telescope, the Very Large Telescope’s Multi-Unit Spectroscopic Explorer, and the Atacama Large Millimeter/submillimeter Array, which included observations taken in ultraviolet, visible, and radio light. Credit NASA, ESA, CSA, STScI, Janice Lee (STScI), Thomas Williams (Oxford), PHANGS Team, Elizabeth Wheatley (STScI)
CENTRE IMAGE....Face-on spiral galaxy, NGC 628, is split diagonally in this image: The James Webb Space Telescope’s observations appear at top left, and the Hubble Space Telescope’s on bottom right. Webb and Hubble’s images show a striking contrast, an inverse of darkness and light. Why? Webb’s observations combine near- and mid-infrared light and Hubble’s showcase visible light. Dust absorbs ultraviolet and visible light, and then re-emits it in the infrared. In Webb's images, we see dust glowing in infrared light. In Hubble’s images, dark regions are where starlight is absorbed by dust. Credit NASA, ESA, CSA, STScI, Janice Lee (STScI), Thomas Williams (Oxford), and the PHANGS team
LOWER IMAGE....Spiral galaxy NGC 1300 is 69 million light-years away in the constellation Eridanus. Credit NASA, ESA, CSA, STScI, Janice Lee (STScI), Thomas Williams (Oxford), and the PHANGS team
BOTTOM IMAGE....Spiral galaxy NGC 628 is 32 million light-years away in the constellation Pisces. Webb’s image of NGC 628 shows a densely populated face-on spiral galaxy anchored by its central region, which has a light blue haze that takes up about a quarter of the view. In this circular core is the brightest blue area. Within the core are populations of older stars, represented by many pinpoints of blue light. Spiny spiral arms made of stars, gas, and dust also start at the center, largely starting in the wider area of the blue haze. The spiral arms extend to the edges, rotating counterclockwise. The spiraling filamentary structure looks somewhat like a cross section of a nautilus shell. The arms of the galaxy are largely orange, ranging from dark to bright orange. Scattered across the packed scene are some additional bright blue pinpoints of light, which are stars spread throughout the galaxy. In areas where there is less orange, it is darker, and some dark regions look more circular. A prominent dark “bubble” appears to the top left of the blue core. And a wider, elliptical “bubble” to the bottom right. Credit
NASA, ESA, CSA, STScI, Janice Lee (STScI), Thomas Williams (Oxford), and the PHANGS team
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notebookofquotes · 3 years
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Our emotions cannot be erased and will not be denied, any more than we can erase or deny our hunger or thirst, our elbows or our earlobes.
Janice Webb
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