4 ms·
This photo provides an overview of how much something vs. nothing is out there: https://commons.wikimedia.org/wiki/File:Webb%27s_First_Deep_Field_(adjusted).jp
by p1mrx 3y ago
This photo provides an overview of how much something vs. nothing is out there:
https://commons.wikimedia.org/wiki/File:Webb%27s_First_Deep_Field_(adjusted).jpg https://commons.wikimedia.org/wiki/File:Webb%27s_First_Deep_...
Even without a telescope, you can infer that space is mostly empty because the sky is dark at night:
https://en.wikipedia.org/wiki/Olbers%27s_paradox https://en.wikipedia.org/wiki/Olbers%27s_paradox
- xwdv 3y agoThis is only true because the speed of light is fairly low relative to the size of the universe. If it was infinite, we’d be bathed in light.
- pixl97 3y agoEh only if it were both infinite in size and age. Because it is expanding light is redshifted to radio signals.
- lucisferre 3y agoAn interesting thought, I would expect that redshift would not be a thing if the speed of light was infinite. A lot of other problems too though.