Hubble telescope spots azure blue planet where it rains...
Astronomers have found an azure blue planet, the first time they've determined the actual color of a planet outside our solar system, NASA said Thursday.
Alien-hunting $1 billion telescope could be ready in just...
Astronomers have proposed a huge 250-foot telescope named Colossus that they hope would be able to spot cities or other signs of alien life on planets up to 70 light years away from Earth.
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