HD189733b

(Newser) - A space traveler might be forgiven for mistaking Earth for another planet known as HD189733b from a distance—they're both a pleasant shade of blue. As Space.com explains, astronomers have for the first time determined the color of a far-flung world, this one 63 light-years away. (They did...

(Newser) - Astronomers located the first planet beyond our solar system that hosts water—a giant gas ball bigger than Jupiter and named HD 189733b. Its sizzling climate, which can reach upwards of 3,600 degrees, renders it uninhabitable to any extraterrestrials, but the discovery shows that water is more common in...