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Science

twodogsbarking

(16,315 posts)

2. Light travels the equiv of 8 times around the earth every second. One light year is a crazy thought.

Reply to LiberalArkie (Original post)

Wed Oct 22, 2025, 03:53 PM

22 hrs ago

Proxima Centauri: This is the closest star to our Sun, and it is a red dwarf star.
Distance: It is approximately 4.24 light-years from Earth. One light year 6 trillion miles.

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A laser pointer at 2 billion fps makes the speed of light look... kinda weird [View all] LiberalArkie Yesterday OP

Absolutely WOW. This is fascinating and will, I hope, encourage more cool science. erronis Yesterday #1

Light travels the equiv of 8 times around the earth every second. One light year is a crazy thought. twodogsbarking 22 hrs ago #2