Astronomy Articles
1: Galaxies of the Universe Explained, such as M39, Whirlpool, IC1613 Explained
Billions of galaxies exist in the known Universe, and not any two are completely the same. Galaxies are awesome compared to what we can comprehend, various thousands of light years across (a light year is approx 300,000kms a second!), others are hundreds of thousands of light years from one side to the other.
Page 1 of 1
[1]