What If Earth Was Twice as Big?

Doesn't it suck having a noisy neighbor? Or constantly running into your ex? We all need personal space, but often find we can't get enough. Don't you wish the world was...

Life on Earth Without the Moon

From the earliest moments of human imagination, the Moon has always been there. Hanging in the night sky, shaping tides, marking time, and quietly influencing life on...

Earth’s Evolution in 10 Minutes

In the past few billion years, Earth has been pummeled by asteroids, crashed into other planets and frozen over several times. Not to mention being ruled by all kinds of...