The rusty world is full of mysteries—and some of the solar system's most extreme geology. Learn more about Earth's smaller, colder neighbor.

The inner solar system is home to four rocky worlds that formed under the intense heat of the young Sun. This video explores Mercury, the scarred planet that is slowly shrinking; Venus, where a ...

Watch this video to find out more about the Earth, planets in our Solar System and other planets far off in outer space. From up here on the International Space Station I get a great view of Earth.

James is a published author with multiple pop-history and science books to his name. He specializes in history, space, strange science, and anything out of the ordinary.View full profile James is a ...

Turn on a kitchen faucet and watch where the thin, fast sheet of water spreading across the basin suddenly humps upward into ...