12 dezembro 2017

It takes about 5,000 years (give or take) for photons to escape the sun’s core. Once they are out,...

It takes about 5,000 years (give or take) for photons to escape the sun’s core. Once they are out, though, it takes just 8.3 minutes for them to reach Earth. The sunlight we see is thousands of years old!

Related post





Nenhum comentário:

Postar um comentário

Related Posts Plugin for WordPress, Blogger...
eXTReMe Tracker
Designed ByBlogger Templates