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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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Violence defines planetary creation, but our solar system seems surprisingly calm.
Scientists will convene this month to figure out what makes an object a planet.
Scientists have discovered a new Jupiter-sized planet orbiting around a distant sun-like star.
Solar systems with Jupiter-like planets may be rare in the universe.
NASA's Deep Impact spacecraft makes movie of moon transiting Earth.
Earth has liquid water and plate tectonics, but its most special feature might just be us.
Astronomers are optimistic they will find Earth-like worlds in the near future.
Astronomers announced the discovery of three oversized Earths orbiting a sun-like star.
It's possible to detect a moon orbiting a known exoplanet, says astrophysicist.
New planet is lowest mass exoplanet yet discovered.
By measuring sound waves from star, astronomers ID cluster where it formed.
Astronomers have discovered possibly the smallest extrasolar planet yet.
Methane has been detected in extrasolar planet atmosphere for first time.
Our nearest stellar neighbors could have a planet like our own.
A Jupiter-like planet and another about the size of Saturn.
Hefty extrasolar planet likely formed collision of two planets.
An extrasolar planet just 10 million years old has been spotted.
Hubble detects signs of a hazy atmosphere in planet around a distant star.
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