We still don’t know what other life is out there lurking in the universe, which makes inventing your own DIY alien costume a blast! You may immediately think of little green creatures with googly eyes ...

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.

A Halloween costume that depicts a space creature in orange prison garb emblazoned with the words "illegal alien" is reigniting debate over a long-used term based on the U.S. government's designation ...