Exoplanets

There's a rocky planet in our stellar neighborhood that's very big and cold. However, scientists argue, it might still hold life.

Scientists think there's a giant new planet full of frozen water, and it's right down the cosmic street from Earth.

There's a telescope that can see thick rings of dust in distant star systems. And researchers want to use its data in a new way to spot hidden and migrating exoplanets.

A global, liquid-water ocean could exist under range of conditions on Proxima Centauri b, the closest known exoplanet to Earth.

How will we know when we've found another Earth?

TESS will have the ultimate view of the night sky from a perfect orbit around Earth.

NASA's next exoplanet-hunting mission is scheduled to launch today (April 16) atop a SpaceX Falcon 9 rocket, and you can watch the action live.

NASA's Kepler Space Telescope has been used to detect 219 new planet candidates, including 10 in the so-called habitable zones of the stars they orbit.

For the first time, researchers have detected an atmosphere around a planet just a little bit larger than Earth outside the solar system.