Outer space is full of mysteries. Think about it: According to NASA, there could be as many as 100 billion solar systems in the Milky Way, and hundreds of billions of other galaxies in the universe.

Halloween is the best excuse to embrace your inner alien and dress up how you've always wanted. Whether you're in the market for a more casual look or you're looking to trick government officials into ...

"Hearst Magazines and Yahoo may earn commission or revenue on some items through these links." If you clicked on this article, we’re guessing that you’re running out of time to get a Halloween costume ...