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Latest News About Alien Planets
An alien planet orbits a star other than our sun, and is sometimes called an "exoplanet." Learn more about the types of alien planets, including exoplanets and extrasolar planets, and get the latest news.
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From the winner of a seat to space to photos of the supermoon sinking, it's been a busy week in space.
The goal is to gauge the composition of Venus' atmosphere.
Young planets need stuff heavier than hydrogen and helium to get going.
Wandering planets don't have to stay starless forever.
Kepler has detected more than 2,300 potential alien planets to date.
The Kepler Explorer app is free and runs on iPhones and iPads.
Studying the alien world's atmosphere will pose more of a challenge than discovering it.
The two Jupiter-like alien worlds are 12.8 billion years old.
New findings suggest that alien plants may be able to photosynthesize a broad range of wavelengths.
The hunt for Earth-like worlds should focus on stars with dusty debris disks, researchers say.
Habitable planets around red dwarf stars may not be able to stay tilted for long.
The Habitable Zone Gallery should help scientists and the public keep up with the flurry of exoplanet finds.
This stunning space wallpaper reveals that astronomers have discovered the three smallest alien planets yet, including one that's just the size of Mars.
One of the newfound worlds is about the size of Mars.
The latest data shows that our Milky Way galaxy is chock full of billions of planets, at least one for every star.
On average, each star in our galaxy likely hosts at least 1.6 planets.
The James Webb Space Telescope could help astronomers characterize exoplanets, a researcher says.
See images and concepts from NASA's Kepler mission, which found an alien planet like the famed "Star Wars" world.
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