Pluto was discovered in 1930 in Arizona, but in 2006 scientists decided to cut Pluto from the planetary line up. Here is why ...

By Will Dunham WASHINGTON (Reuters) -In a memorable image from the 1977 film "Star Wars," the young hero Luke Skywalker gazes ...

NEW YORK (AP) — A new Tatooine-like planet outside the solar system may orbit two failed stars ... 3 Chinese astronauts docks ...