WHY IS THE SPACE BLACK??

WHY IS THE SPACE BLACK??

Blog#306

Saturday, June 17th, 2023

Welcome back,

Look up at the night sky with your own eyes, or marvel at images of the universe online, and you'll see the same thing: the inky, abysmal blackness of space, punctuated by bright stars, planets or spacecraft. But why is it black? Why isn't space colorful, like the blue daytime sky on Earth?

Surprisingly, the answer has little to do with a lack of light.

WHY IS THE SPACE BLACK??

"You would think that since there are billions of stars in our galaxy, billions of galaxies in the universe and other objects, such as planets, that reflect light, that when we look up at the sky at night, it would be extremely bright," Tenley Hutchinson-Smith, a graduate student of astronomy and astrophysics at the University of California, Santa Cruz (UCSC), told Live Science in an email. "But instead, it's actually really dark."

WHY IS THE SPACE BLACK??

Hutchinson-Smith said this contradiction, known in physics and astronomy circles as Olbers' paradox, can be explained by the theory of space-time expansion — the idea that "because our universe is expanding faster than the speed of light … the light from distant galaxies might be stretching and turning into infrared waves, microwaves and radio waves, which are not detectable by our human eyes."

WHY IS THE SPACE BLACK??

And because they are undetectable, they appear dark (black) to the naked eye.

That said, a 2021 study in The Astrophysical Journal suggests that space may not be as black as scientists originally thought. Through NASA's New Horizons mission to Pluto and the Kuiper Belt, researchers have been able to see space without light interference from Earth or the sun.

WHY IS THE SPACE BLACK??

The team sifted through images taken by the spacecraft and subtracted all light from known stars, the Milky Way and possible galaxies, as well as any light that might have leaked in from camera quirks. The background light of the universe, they found, was still twice as bright as predicted.

WHY IS THE SPACE BLACK??

The reasons for the additional brightness, which remain unknown, will be the focus of future studies. Until then, one thing seems likely: Space could very well be more "charcoal" than pitch-black.

Originally published on big livescience.com

COMING UP!!

(Wednesday, June 21st, 2023)

"WHY IS DARK MATTER SO IMPORTANT??"

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I Heard Reference To Something About How All Anime Are Required To Have Good Looking Cabbage Because
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I Heard Reference To Something About How All Anime Are Required To Have Good Looking Cabbage Because

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I Heard Reference To Something About How All Anime Are Required To Have Good Looking Cabbage Because

A complaint, apparently in a paper.

I Heard Reference To Something About How All Anime Are Required To Have Good Looking Cabbage Because
I Heard Reference To Something About How All Anime Are Required To Have Good Looking Cabbage Because

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I Heard Reference To Something About How All Anime Are Required To Have Good Looking Cabbage Because
I Heard Reference To Something About How All Anime Are Required To Have Good Looking Cabbage Because

And high quality or low quality cabbage is sometimes referenced.

I Heard Reference To Something About How All Anime Are Required To Have Good Looking Cabbage Because
I Heard Reference To Something About How All Anime Are Required To Have Good Looking Cabbage Because

I learned of this because the most recent Hologra episode has noel eating cabbage, tearing apart a fine quality cabbage into two low poly halves.

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1 year ago

mine's not 17 yet but yeah okay

"what's your dream job??" Uhh to have 17 weird little hobbies that I don't have to be good at and hang out with friends. I get money via being the world's specialist little princess

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waspluto - rie
rie

an extraordinarily ordinary human being who exists, that's it. idk much about myself either so

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