3 ms·
Why is the sky black? - at night (of course) - there are ~1 septillion stars that are all shiny
by librasteve 8mo ago
Why is the sky black?
- at night (of course)
- there are ~1 septillion stars that are all shiny
- mr_toad 8mo agoIf the universe was infinite and eternal you’d expect the night sky to be white - all the gaps between stars would be filled in with stars further away.
- librasteve 8mo agothis! guess this is the definitive proof that the visible universe is finite