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Rabu, 28 Maret 2012

Oldest Alien Planets Discovered to Date, Born at Dawn of Universe 12.8 billion Years Ago

Two huge Jupiter-sized planets found orbiting a star 375 light-years away, that will soon transform into a red giant (image above), are the oldest alien worlds yet discovered, reported scientists at the Max-Planck Institute for Astronomy in Heidelberg, Germany. "The Milky Way itself was not completely formed yet," said study leader Johny Setiawan. During a recent survey using radial velocity, in which astronomers watch for periodic wobbles in a star's light due to the gravitational tugs of orbiting worlds, Setiawan and colleagues found the signatures of the two planets orbiting the star, dubbe

Digg 27 Mar, 2012


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