The supposed "strange signals" were not mysterious at all, but commonly observed transit signals, according to NASA.

Could there be an even better planet for us than Earth? Scientists are searching for a superhabitable world that wouldn’t ...

The object dubbed Earth's "second moon" is actually a quasi-satellite that's accompanied the planet since 1957 — not a true ...

Our planet is unique for its ability to sustain abundant life. From studies of the rock record, scientists believe life had already emerged on Earth at least 3.5 billion years ago and probably much ...

In addition to shaping the interior of rocky planets, molten rock located deep within these planets may also contribute to ...

The planet HD 189733 b was discovered in 2005, as one of many huge gas worlds snuggled tightly against their suns. It gradually gained popularity for .

Astronomers have discovered a giant glowing iron bar across the Ring Nebula. Its origin is unknown, defying models of stellar ...

The origin of super-Earths and sub-Neptunes has been revealed in a system of four young planets that are dramatically losing ...

For anyone curious about what it's like to stand on another planet, Earth offers a few convincing previews. Mars may be 140 ...

A rare discovery beyond Neptune is forcing scientists to rethink early solar system dynamics and the forces that shaped ...

Amidst a cache of glittering golden treasures from the Iberian Bronze Age, a pair of corroded objects might be the most ...

Scientists claim that first extraterrestrial contact will be a loud event impossible to ignore, not a subtle signal.