A University of Arizona professor is optimistic about finding life on a newly discovered planet located in the Alpha Centauri system, which is the closest solar system to ours. The planet is believed ...

A high concept gets low execution in “Planet 51,” a lame-brained toon that even kids will recognize as an insipid goof on sci-fi conventions. Any number of things have been and could still be done ...

For millennia, the only planets we knew of were the ones in our own solar system. That changed in October 1995, when a pair of Swiss astrophysicists announced that they had discovered a planet ...