Visit the movie page for 'Planet X Dark Red Star on a Collision Course With Earth' on Moviefone. Discover the movie's synopsis, cast details and release date. Watch trailers, exclusive interviews ...

Scientists hunting for Planet Nine, an elusive planetary body that could change our understanding of the solar system, have found something. Planet X is a hypothetical planet seven times the mass ...

The elusive Planet Nine, which is theorized to be lurking somewhere in the outer reaches of the solar system, may not be a planet after all, a new study suggests.

Combining the powers of Magneto, Storm, Iceman, and many other mutants, the X-Men terraformed Mars and made it a planet just for mutants in Planet-size X-Men #1, the latest Marvel Comics mutant story.