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thecrashcourse · 2 days

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Crash Course Podcast coming 4/24!

In Crash Course Pods: The Universe, astrophysicist Dr. Katie Mack and Curious Person™️ John Green do one of the most human things there is: try to understand the vast universe we find ourselves in.

Starting 4/24, listen to the pod on our YouTube channel and wherever you get your podcasts!

Check out a preview:

youtube

#the universe #crash course #john green #astrophysics #space #science #podcast #Youtube

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wandoffire · 2 days

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aleck-le-mec · 3 months

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I just rewatched David Tennant’s doctor regeneration into Matt Smith scene and I totally forgot that the Ood sing him a song as he goes. It’s one of the first times in a long time where he’s alone it’s Christmas, he’s scared and struggling to stand and “the universe sings him to sleep”. Even when he doesn’t have a companion the whole universe sings him to sleep, he’s never truly alone the universe is thanking him for his sacrifice and care in his last moments.

#the doctor #david tennant #matt smith #tenth doctor #doctor who #the ood #sad thoughts #sad but true #the universe #tardis

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zubneo · 3 months

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The full tapestry

#minecraft #mc #my art #the universe #players #drawing

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heckingheckonaheck · 2 years

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ATTENTION! ATTENTION! ATTENTION!

URGENT ANNOUNCEMENT!

THE JWST HAS TAKEN TEST IMAGES THAT WERE JUST RELEASED

LOOK AT THIS PICTURE DUDE!!! IT’S SPACE BUT LIKE INSANELY FAR AWAY!!!

JWST EVEN TOOK A SELFIE!!! (you gotta appreciate that near not blurry photo… it is hurtling through space at 720 MPH)

HERE’S A FEW MORE PHOTOS!!!

THERE IS A LOT MORE AVAILABLE AT NASA’S JAMES WEBB TELESCOPE FLICKR PAGE. THERE ARE EVEN GRAPHS!!!

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dduane · 29 days

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(rueful smile) Is anything more likely?

#JWST #the Universe

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soulinkpoetry · 3 months

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There will be maybe one or two people who will enter your life and leave their mark on you throughout your lifetime. Those kind of encounters you never forget them.

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Music score of Interstellar by Hans Zimmer

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#the universe #sends you people #encounters #soulinkpoetry #poetry #thoughts #she writes #feelings #poets on tumblr #poets corner #that’s life #poet community

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pratchettquotes · 7 months

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"This doesn't sound like Music With Rocks In," said the Bursar.

"Shut up," said the Dean. He blew his nose.

It was sad music. But it waved its sadness like a battle flag. It said the universe had done all it could but you were still alive.

Terry Pratchett, Soul Music

#imp y celyn #the bursar #the dean #soul music #discworld #terry pratchett #music with rocks in #music #sad music #the universe #hopeful #battle flag #you're still alive

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thoughtkick · 5 months

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Thoughts become things. Choose the good ones.

The Universe

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aspaceinthecosmos · 10 months

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hello! i've got some GROUNDBREAKING space news for you!

scientists have uncovered evidence for a gravitational wave background (GWB) in our universe, and the way they went about it is fascinating.

To fully understand what's going on here, we need to go into a bit of background information.

First of all: what are gravitational waves? gravitational waves are often called 'ripples' in spacetime, often caused by extremely energetic processes such as black holes colliding, or two neutron stars orbiting each other closely.

So, how did scientists figure this out? They used 67 pulsars (known as the Pulsar Timing Array) throughout the Milky Way, practically creating a galaxy-sized telescope in order to study this.

Pulsars are the extremely dense cores of massive stars, left over after they go supernova. These are fascinating on their own, but for this project, they had an essential feature: Pulsars rapidly rotate (think up to hundreds of rotations per second), spewing radiation out in pulses from their magnetic poles. For some pulsars, these radiation jets cross Earth's line of sight, and we get incredibly constant bursts of radio signals, which can be catalogued and used as a sort of standard, universal clock.

Here is a link to a gif showing the rotation of a pulsar. Please be warned for flashing and eyestrain.

For 15 years, a team of astronomers working for the North American Nanohertz Observatory for Gravitational Waves (NANOGrav), used radio telescopes around the globe to track minuscule changes in the signal patterns from pulsars. The changes they found are due to the slight movement of spacetime between us and the pulsars, stretching and compressing the paths of their radio waves as extremely low frequency gravitational waves pass through the universe (yes, that includes you. your atoms, as well as the atoms making up everything around you, are very slowly shifting position, dancing along to the heartbeat of the universe).

At the moment, scientists are still debating what could have caused this gravitational wave background, but some there are some leading theories: the GWB could be caused by trillions of binary black hole systems (black holes orbiting each other) throughout the universe. It could also be due to cosmic inflation, or even the big bang itself. Scientists just don't know yet, but the opportunities this discovery opens up are incredible.

The knowledge of the GWB could help us better understand the formation of early galaxies, or even help us understand the origin of the universe.

#aspaceinthecosmos #space #astronomy #outer space #just jupiter #astrophysics #gravity #gravitational waves #physics #pulsars #black holes #neutron stars #the universe #LIGO

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thatsbelievable · 4 months

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#Did You Know?#facts #trivia #the universe #universe #space #anxiety #existential dread #unreality

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wandoffire · 6 months

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cloudofbutterflies · 2 years

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The James Webb Telescope has some new pictures of Jupiter!

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greetings-inferiors · 10 months

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You want to know what the scariest thing about the universe is? It’s not blackholes, as the nearest black hole is too far away to ever have any impact on you. It’s not the sun exploding, because that’s only going to affect a very small area. It’s the expansion of the universe. The universe is expanding, and it’s expanding quicker. Every second the expansion of the universe gets faster.

But what is the expansion?

It’s not like spilling a cup of water on a table, where the water is rushing out and filling the space. The expansion of the universe is the space between everything increasing. The universe isn’t expanding into anything, the space between it is just getting larger. What this means is that the space between every atom, every nucleon, every quark in your body is increasing. But luckily the forces are strong enough to hold you together. You have nothing to worry about. But the expansion is accelerating. Eventually the expansion will be so fast that the omly things that can keep together are solar systems, everything else is too far away, the gravity is too weak. Eventually the expansion will be so fast that the light from the galaxies and solar systems won’t reach us. The night sky will be pitch black save for only the moon. But the expansion won’t stop there. Eventually even the sun and moon will hurtle away from us. Eventually even the earth will fly away from you. The space inbetween your particles will increase so quickly that you are ripped apart from the inside. Every particle in your body being ripped at light speed away from each other. Eventually every particle will be its own universe. Surrounded by nothing. Essentially, it is the only thing that exists. Maybe that’s how our universe started. Our universe may be a small remnant of someone, ripped apart by space itself. Maybe every single quark in you will go on to become its own universe, only to share the cruel fate of being ripped apart, atom by atom.

Supernovae are nothing. Black holes are meaningless. But the cold expansion of space is unfeeling, and it will tear apart everything. The most dangerous thing is reality itself.

#text post #randyposting #long post #science #physics #Astronomy #universe #the universe #terrifying #cosmic horror #but literally #space

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thehopefulquotes · 3 months

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Thoughts become things. Choose the good ones.

The Universe

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0scarwilde · 1 year

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it is okay to still feel hurt, even if you thought you were over it.

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