Visit Blog
Explore Tumblr blogs with no restrictions, modern design and the best experience.
Fun Fact
If you dial 1-866-584-6757, you can leave an audio post for your followers.
#black hole
brawcore · 13 hours ago
Photo
Tumblr media
0 notes
martinbecker57 · 16 hours ago
Text
Black Hole 190_70
Black HoleCanvas 190 / 70 cm4.390,00 €(c) Martin Becker In der Serie Rainbow- Spirals stelle ich Euch mein neuestes Werk vor: Ein schwarzes Loch als Regenbogen- Spirale. Viel Spaß und Grüße vom Martin
Tumblr media
View On WordPress
0 notes
zespaceblog · a day ago
Text
Tumblr media
RX J185635-3754
Neutron stars are the super dense remains of large stars (around 20 times the mass of our Sun) that collapse under gravity after nuclear fusion fails in the core of the star. The remaining matter is around 2-4 times the mass of our Sun, but crushed down so much, the final object is no larger than a big city area.
What is inside of a neutron star is not well understood, owing both to their size and distance, but the latest theories suggest the star having failed to halt the collapse at Oxygen/Carbon as a white dwarf does, turns into a soup of neutrons and protons, with some even being broke down to quarks.
Tumblr media
So finding a nearby neutron star that could be studied would be a great benefit, and this is where RX J185635-3754 comes in.
First detected in 1992 and later imaged by Hubble in 1996 and 1999, the object was seen to be moving across the sky at an unusual pace, and more so, was displaying a seasonal wobble, caused by the rotation of the Earth around the Sun (otherwise known as Parallax). Objects that display notable parallax are much closer to the Earth, and it turns out this neutron star was just under 500 light years from Earth and getting closer.
Tracing it back, it is believed to have been thrown out of its system some 1 million years ago from a similar location to Zeta Ophiuchus, itself a beautiful O type blue star with a similarly peculiar proper motion (movement and speed compared to the normal movement of the stars around the galaxy).
Tumblr media
This can be seen in the bow shock wave surrounding the star as it moves through an area with dust and gas. Similar detailed observations of RX J185635-3754 have shown up a similar bow shockwave as it moves through space too.
Sadly, despite being the closest neutron star, it's beyond the capacity to view with our naked eyes, and even medium sized telescopes, at Magnitude +26, it's some 20 billion times dimmer than some of the brightest stars in our night sky.
Even so, for science this is a very important object, allowing us to test our theories and investigate in more detail the nature of these small but powerful objects.
67 notes · View notes
lespressobean0415 · a day ago
Text
Article: Hubble takes a spiral snapshot
Hubble takes a spiral snapshot
Tumblr media
49 notes · View notes
space-life · a day ago
Text
Some things about Space Life
Space Life is a science fiction webcomic set in an indefinite future on a small spaceship traveling the cosmos. On board the spaceship we find Tom, an astronaut we always see with a suit and helmet and AL, the voice of an artificial intelligence. Welcome to spaceship Beagle 5. Sit back and enjoy following Tom and AL on an extravagant adventure among the stars. Try to find countless references to famous and little-known jewels from scifi, nerd and pop culture.
Some things about Space Life
The Beagle 5 spaceship takes its name from the HMS Beagle ship. The HMS Beagle on her second voyage hosted the then young naturalist Charles Darwin on board, whose work made the Beagle one of the most famous ships in history. Number 5 is a tribute to Eagle 5 (which also has a certain similarity with the name Beagle) spaceship of Spaceballs (A 1987 american science fiction comedy film co-written, produced and directed by Mel Brooks).
AL is a tribute to Alan Turing. Philosopher, mathematician and cryptographer. The test that bears his name is still considered today a valid tool to ascertain whether a machine is able to compete with human intelligence.
AL also remembers HAL 9000, the supercomputer aboard the spacecraft Discovery in Stanley Kubrick's 2001: A Space Odyssey and Arthur C. Clarke's book of the same name. In 2003, the American Film Institute placed HAL 9000 in 13th place on its list of the 50 Best Movie Villains of All Time. What surprises will AL have in store for us?
Tumblr media
The work break raises the question about the future of work and about human-machine interaction. For further information see Homo Deus: A Brief History of Tomorrow by Yuval Noah Harari and Superintelligence: Paths, Dangers, Strategies by Nick Bostrom
The game of chess proposed by Tom in "Origin" is a tribute to the great chess challenges between man and computer. Chess and computers have gone hand in hand since the dawn of information technology. Between the end of the 40s and the beginning of the 50s the first articles appeared (with signatures of illustrious scientists such as Claude Shannon, Norbert Wiener and above all the aforementioned Alan Turing) that designed algorithms capable of playing. Memorable were the challenges between Kasparov and IBM's Deep Blue.
Tumblr media
In "Spoiler" Tom says he wants to start reading "War and Peace". The reference is to the Peanuts character Snoopy who loves War and Peace, but in order not to get tired he reads no more than one word a day.
After the Apollo 1 fire, Snoopy became the official mascot of the Apollo program's aerospace security, testing and rebuilding.
The Apollo 10 lunar module was named "Snoopy" and the command module "Charlie Brown".
The Silver Snoopy award is a special NASA award in the form of a silver pin engraved with Snoopy with a space helmet. It is given to an astronaut who works in the space program who has gone above and beyond on the pursuit of quality and safety.
Tumblr media
In "Cultural evolution" we refer to the cultural evolution in animals. In recent decades, a burgeoning literature has documented the cultural transmission of behavior through social learning in numerous vertebrate and invertebrate species. A meaning of "cultural evolution in animals" refers to these findings and I present an overview of the key findings. I will then address the other meaning of the term focused on cultural changes within a lineage. Such changes in humans, described as "cumulative cultural evolution", have been spectacular, but relatively little attention has yet been paid to the subject in non-human animals, other than claiming that the process is unique to humans. A variety of evidence, including controlled experiments and field observations, has begun to challenge this view and in some behavioral domains, particularly birdsong, cultural evolution has been studied for many years. The scifi reference is to "Planet of the Apes" and compared to the bears to the short story "Bears Discover Fire" by American science fiction author Terry Bisson.
"Time" is set in the vicinity of the black hole M87 . It's the central black hole of the giant elliptical galaxy Galaxy Virgo A, encoded as "M87" (the largest galaxy in the "near" universe, located 56 million light years from us , in the Cluster of the Virgin). It has a mass approximately 6.6 billion times that of the Sun.
Tumblr media
That the  time be one illusion is a mantra of many modern theoretical physicists. In the equations of the "loop quantum gravity model", with which Carlo Rovelli, Lee Smolin and others try to unify Einstein's general relativity and quantum mechanics, time disappears. What exists at the fundamental level are only "atoms of space". The universe and its history are nothing more than ways in which these "space atoms" are arranged. (Rovelli's Book)
Tom's answer - "Time is an illusion. Lunchtime doubly so"- is a quote from "The Hitchhiker's Guide to the Galaxy" by Douglas Adams.
Have fun finding references and quotes in the next few episodes! feel free to write your ideas in the comments.
1 note · View note
the-cosmic-yeet · a day ago
OwO what this? *gets sucked into a blackhole*
Damn you *uses a reacher-grabber tool to pull you out*
Tumblr media
36 notes · View notes
geoderp3000 · 2 days ago
Text
Tumblr media
You won't see me in line to be the first to test it 👀
0 notes
trip-the-rift · 2 days ago
Audio
This is my little brother’s last transmission. I hope he’s ok
0 notes
lezinnefanzinesclub · 2 days ago
Text
Tumblr media
Tumblr media
Tumblr media
Tumblr media
Tumblr media
In the cosmo by Camilla Del Fabro
0 notes
one-time-i-dreamt · 2 days ago
Text
Earth was being sucked into a black hole and we had like five days until our doom, but everyone was just making shitty memes about it like, "That awkward moment when your whole planet is falling to the spacetime rip but your society isn’t advanced enough to stop it. 🙄"
1K notes · View notes
whattolearntoday · 3 days ago
Photo
Tumblr media
A bit of April 10th history...
1790 - US Patent system forms
1815 - Mt Tambora in the Dutch East Indies has a cataclysmic eruption - one of the most powerful in history. 71,000 people die and it causes a global volcanic winter.
1866 - American Society for Prevention of Cruelty to Animals (ASPCA) forms
1912 - Titanic sets sail on her maiden and last voyage.
1947 - Jackie Robinson becomes 1st black player to sign an MLB contract.
1972 - US, USSR, and 70 other nations agree to ban biological weapons
2019 - 1st photo of a black hole (pictured)
26 notes · View notes
mysticstronomy · 3 days ago
Text
WHY IS THE SUN YELLOW IN COLOR??
Blog#78 Saturday, April 10th,2021
Welcome back,
When we look up into the night sky the stars look much the same. Some stars appear brighter than others but they all look white. If the stars are looked at through a pair of binoculars some appear to be different colors. Many stars look quite orange in color and some have a blue/white tint. The color of a star depends on its surface temperature and indirectly on its size. Stars vary in color ranging from orange through true white to blue. Color is caused by the temperature of the surface of the star. Our Sun is classified as a yellow dwarf and is very much an average mid-range star with a surface temperature of about 6000ºC.
Tumblr media
Blue or even blue/green stars are very hot up to 50,000ºC and are normally giant young stars that are very active or even ‘hyper-active. They are all young because they don’t live very long. They live very active short lives and die young usually in a massive explosion called a Super Nova. White to blue-white stars are bigger, more powerful, and hotter than our Sun with surface temperatures up to 12,000ºC and generally, live longer than blue stars but not as long as our Sun will.
Tumblr media
Yellow stars are normally from twice the mass (mass is the stuff they are made of) down to about one-tenth of the mass of our sun. These stars are in their midlife and are normal average stars. Orange or Red stars have used up most of their Hydrogen fuel and are approaching the end of their lives. Because the fuel (hydrogen-burning - fusion) is running out, the waste product Helium has built up in the center of the star. Helium can only burn in large stars so the nuclear furnace has developed into a shell above the Helium central core. As there is not so much of the star left above the nuclear furnace shell there is less gravitational force to hold in the outer regions.
Tumblr media
The nuclear reaction will actually become fiercer and the outer part of the star gets pushed out by the increased radiation and blows up like a balloon. The star develops into a huge Red Giant with a diameter large enough to engulf all the planets in our solar system out to Mars if it was at the position of our Sun. With the heat spread over this huge surface area, the surface will become quite cool for a star, between 2500 ºC and 4000 ºC. Another type of red star is the Red Dwarf. This is a very small star perhaps as small as one-hundredth of the mass of our Sun. Red Dwarfs are small and dim and are therefore very hard to see even in large telescopes, only the closest to us are visible.
Tumblr media
There are other types of stars besides the normal ones which are just hotter than other ordinary stars. Some vary in brightness, some stars blow off great clouds of gas and dust, some burn Helium or Carbon instead of Hydrogen. When medium-sized stars like our Sun are very young they tend to be very active and hot. Giant stars burn their fuel very fast and are also very hot both types of stars shine white or blue. Old stars become bloated into giants so the heat they produce and spread over a large surface area so they appear cooler and shine with a red color much like when an electric fire element is cooling down. Very small stars don’t produce so much heat so they appear red and cooler.
GREEN / WHITE Type W & O 36000+°C
Giant very hot active stars
BLUE Type B 28600+ °C
Very hot Helium stars
WHITE Type A 10700+ °C
Large hot stars
YELLOW / WHITE Type F 7500+ °C
Stars larger & brighter than Sun
YELLOW Type G 6000+ °C
Like our sun
ORANGE Type K 4800+ °C
Cooler stars
ORANGE / RED Type M 3400+ °C
Old dying stars
RED Type N & S 2500+ °C
Cool Carbon stars
COMING UP!!
(Saturday, April 14th,2021)
“CAN BLACK HOLES BE PORTALS TO OTHER UNIVERSE??”
67 notes · View notes
cheeky-orchid-art · 5 days ago
Text
Tumblr media
Furby is beginning. Furby is end. Furby is everything. Furby is Chaos unleashed!
FURBY! FURBY! FURBY! FURBY! FURBY! FURBY! FURBY! FURBY! FURBY! FURBY! FURBY! FURBY! FURBY! FURBY! FURBY! FURBY! FURBY! FURBY! FURBY! FURBY! FURBY! FURBY! FURBY! FURBY!FURBY! FURBY! FURBY! FURBY! FURBY! FURBY! FURBY! FURBY!
82 notes · View notes