Elon Musk wants to nuke Mars. What are the consequences? Without nukes, life on Mars might be like this: You'd live in giant ...

Auroras are not just on Earth. NASA has detected glowing northern and southern lights on Jupiter, Saturn, Mars and other ...

New simulations suggest that up to four of the solar system's rocky planets, including Earth and a long-lost world, once orbited in mathematical harmony around the infant sun. When you purchase ...

Do you know which planet has a waterfall four times taller than Angel Falls? Discover the largest waterfall in the Solar ...