|An artist's concept of the alien Kepler-452b in orbit around its star Kepler-452, which is located 1,400 light-years from Earth. NASA has billed the potentially habitable planet as Earth's bigger, older cousin.|
By Nola Taylor Redd
Scientists with the SETI (Search for Extraterrestrial Intelligence) Institute have already begun targeting Earth's "older cousin," Kepler 452b, the first near-Earth-size world found in the habitable zone of a sun-like star.
NASA announced the discovery of Kepler-452b last week, billing the planet as the closest thing yet to an Earth 2.0 beyond Earth's solar system. Researchers have used the Allen Telescope Array, a collection of 42 radio antennas in northern California, to study the planet for radio signals that could indicate the presence of intelligent extraterrestrial life. So far, the antennas haven't tuned into any broadcasts.
"That's no reason to get discouraged," Seth Shostak, senior astronomer with the SETI Institute, which is based in Mountain View, California, said . . ..
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