Does A Twin Earth Exist?

Does A Twin Earth Exist?

Artist’s conception shows a hypothetical twin Earth orbiting a Sun-like star.

Does a twin Earth exist somewhere in our galaxy? Astronomers are getting closer and closer to finding an Earth-sized planet in an Earth-like orbit. NASA’s Kepler spacecraft just launched to find such worlds. Once the search succeeds, the next questions driving research will be: Is that planet habitable? Does it have an Earth-like atmosphere? Answering those questions will not be easy.

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Scientists Directly Observe Three Distant Planets

Scientists Directly Observe Three Distant Planets 

 The Hubble Space Telescope captured a fuzzy image of the planet, known as Fomalhaut b, which is no more than a white speck in the dust ring that surrounds the star.

A little more of the universe has been pried out of the shadows. Two groups of astronomers have taken the first pictures of what they say – and other astronomers agree – are most likely planets going around other stars.

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