Exoplanets like Earth have been discovered but not all Earth-like planets are equal when it comes to alien life.

Why don't planets fall into the stars they orbit if they're constantly being pulled by gravity?Lindsey CoughterRocky Mount, ...

Earths, vast underground oceans of molten rock may be quietly doing the work of life’s first line of defense: generating ...

Thanks to the discovery of thousands of exoplanets to date, we know that planets bigger than Earth but smaller than Neptune ...

The upcoming year will offer a blood-red moon, spectacular meteor showers and the first glimpse of the sun’s corona since ...

Scientists have discovered more than 6,000 planets beyond our solar system. What if some of them aren't planets at all, but ...

NASA has confirmed that there are over 6,000 exoplanets floating out there in the galaxy, with another 8,000 exoplanets that ...

Choose your fighter for the origin of water on Earth! Was it always here or did it come to this planet from somewhere else in ...

In a blow to anyone dreaming that complex life may exist elsewhere in the universe, a new study suggests we're unlikely to ...

The star system V1298 Tau reveals that many planets begin as large, low-density worlds that slowly shrink and shed their ...

Astronomers may have finally worked out how planets between the size of Earth and Neptune – which aren't found in our Solar ...