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

We live in a very exciting time: answers to some of the oldest questions humanity has conceived are within our grasp. One of ...

NASA has taken a bold step in the search for alien life beyond Earth. The space agency announced the selection of seven ...

"Awards like these are a critical component of our incubator program for future missions, which combines government ...

Scientists have identified an unexpected way to study the hidden space weather of distant stars by observing strange, ...

For decades, scientists have tried to turn the question of alien life from late-night speculation into something you can ...

WASHINGTON (Reuters) - Astronomers have spotted orbiting around a young star a newborn planet that took only 3 million years to form - quite swift in cosmic terms - in a discovery that challenges the ...

Far beyond the eight familiar planets in our solar system, countless bizarre and extreme worlds await discovery — and some have already been found. Thanks to rapidly advancing telescope technology, ...

Astronomers discovered the TRAPPIST-1 system, a family of tightly packed planets swarming a red dwarf star, about eight years ago. Credit: Mark Garlick / Science Photo Library / Getty Images ...

As shocking as it sounds today, prior to the 1990s, scientists couldn't be certain that stars beyond the sun also had planets orbiting them. Since the discovery of the first extra-solar planet, or ...

An ocean world that’s teeming with microbes — and who knows what other kinds of life — is currently the best explanation for some chemical signatures that the James Webb Space Telescope has spotted in ...

Humans should look to planetary alignments outside of the solar system when searching for signatures of extraterrestrial communications, scientists say. The nascent search for radio transmissions from ...