For years, astronomers have sought a way to directly observe the atmospheres of exoplanets, worlds orbiting distant stars.

For years, astronomers have searched the cosmos for planets capable of supporting life. Most efforts focus on the "habitable zone," the region around a star where a planet could have liquid water. But ...

An arrowhead-shaped rock on Mars sporting features that may hint at ancient microbial activity on the Red Planet has left ...

Astronomers are ready to search for the fingerprints of life in faraway planetary atmospheres. But first, they need to know ...

A new study presents a compelling new model for the formation of super-Earths and mini-Neptunes -- planets that are 1 to 4 times the size of Earth and among the most common in our galaxy. Using ...

With new data coming in from Mars, scientists have a new theory about why the planet is red. What does this mean for whether ...

A new world has just been found orbiting a Sun-like star only 20 light-years away, and it could be one of the most promising ...

Ancient Mars may have been warmer, wetter, and weirder than expected, according to an discovery made by NASA's Mars ...

When a mudflat crumbles on Earth, or an ice sheet splinters on one of Jupiter's moons (Europa), or an ancient lakebed breaks ...

For over 100 years, scientists have been hell-bent on talking to aliens, and new technology could give that hunt a boost.