Ancient Earth had more than 2 magnetic poles

Massive black holes could be far more numerous than previously thought

Fermi paradox solved? Aliens won't contact us for 1,500 more years, says student

Thanks to 'headspace' technology, you'll soon know what Mars smells like

Earth has captured a second moon, says NASA

Twisty molecules with 'handedness' that are essential to life found in deep space

5 encouraging signs we're going to Mars

The Milky Way isn't as massive as we thought

King Tut's dagger was made from meteorite

What is the faint young sun paradox?

Will a man-made meteor shower open the Tokyo Olympics?

Huge 400-foot tsunamis once washed over Mars