Earth is called the Blue Planet because 71% of its surface is covered with water, giving it a blue glow when seen from space.

Ah, Earth. We may not think about our planet on a day-to-day basis, but the world we live in is a pretty interesting place. The third rock from the Sun—and to this day, the only one with known ...

Real Facts That Sound Like Tall Tales: 25 Mind Melting Facts Will Make You Question Everything: Do you really realise how ...

Discover the most and least abundant gases in Earth's atmosphere. Learn why nitrogen (78%) dominates the air and which noble ...