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Et Search: Look For the Aliens Looking For Earth

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Earth transiting the Sun

Alien astronomers could be watching for the 'blink' as Earth passes in front of the Sun, a technique researchers here use to spot alien worlds.

Credit: ESA/Hubble

By watching how the light dims as a planet orbits in front of its parent star, NASA's Kepler spacecraft has discovered more than 1,000 worlds since its launch in 2009. Now, astronomers are flipping that idea on its head in the hope of finding and talking to alien civilizations.

From Nature
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