Earth

The only planet known to contain life, this is our home planet. With a diameter of more than 12,000 kilometers, our nearly six septillion kilogram planet may seem like a giant compared to our miniature size. With 77% of the surface covered in oceans of liquid water, this is the only planet we can live on, for the time being. The atmosphere is made up of 77% nitrogen, 21% oxygen, and 1% other elements such as carbon, and argon. However, our planet, as cosmologist Carl Sagan, one put it, "is a very small stage, in a vast cosmic arena." It's gargantuan size shrinks when compared to the vastness of the universe. It becomes an obscure speck of dust when pitted against the rest of exsistence.

pale blue dot