Thursday, January 12, 2012

Astronomers Discover Three Alien Planets Smaller Than Earth

[ via Mashable ] 12 Jan

Using the data from NASA’s Kepler mission, astronomers have found three alien planets smaller than Earth, orbiting a star much smaller than our Sun.
The planets, which are orbiting a red dwarf star known as KOI-961, are 0.78, 0.73 and 0.57 times the diameter of Earth, making them the smallest alien planets discovered so far.

The KOI-961 is located 120 light-years away, in the Constellation Cygnus (The Swan). It’s approximately one-sixth the size of our sun, which made it possible for scientists to watch for dips in the star’s brightness and thus discover the orbiting planets.
Read more: Mashable
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