Starshade exoplanet-hunting missions may be technologically daunting, but they're not beyond NASA's reach, recent research suggests.
An alien planet that orbits a star other than our sun is referred to as an "exoplanet." Learn more about the types of alien planets, including exoplanets and extrasolar planets, and get the latest news.
There's a whole universe of nameless stars and exoplanets beyond our solar system, and now space fans around the world will have a chance to help name these objects.
Astronomers have photographed two newborn alien worlds circling the young sun-like star PDS 70, which lies about 370 light-years from Earth, a new study reports.
Astronomers have used a desert-based observatory to identify an exoplanet that falls in the middle of what scientists had dubbed the Neptunian Desert.
Scientists scouring old Kepler Space Telescope data have tracked down 18 more relatively small exoplanets imaged by the famed planet-hunting observatory.
When stars about the sun's size swell into red giants and finally dwindle into white dwarfs, their planets may be kicked out of the system or consumed.
Water worlds that each possess thousands of times more water than Earth does may be more common than Earth-like rocky planets in the Milky Way galaxy, a new study finds.
Six months after its unveiling, uncertainty still swirls around the first serious exomoon candidate.
A third world lurks in the two-star Kepler-47 system, and it's bigger than its two previously known siblings, a new study reports.
The Transiting Exoplanet Survey Satellite spotted the planet, as well as a weird "sub-Neptune" world, circling the star HD 21749, which lies about 53 light-years from Earth.
Planetary scientists are calling on mineral physicists to help them figure out the strange chemistry going on inside super-Earths and mini-Neptunes.
Wandering objects like 'Oumuamua — the first interstellar body ever observed in our own solar system — likely help seed newborn planetary systems, a new study suggests.
New data from the European Southern Observatory shows raging storm clouds of iron and silicates swirling above a distant exoplanet.
NASA's TESS mission has, for the first time, detected a planet orbiting a star with visible starquakes.
Scientists hunting for signs of alien life shouldn't be so quick to dismiss carbon monoxide, a new study suggests.