Extraterrestrial opal discovered in Antarctic meteorite

There's a huge helium deposit under Tanzania, and here's why you should care

Who needs fireworks when you have the stars?

Our galaxy is teeming with 'stealth' black holes

Astronauts go underground to train for space

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