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.

Add Yahoo as a preferred source to see more of our stories on Google. 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 ...

If a store-bought costume just won't do for your trick-or-treater, why not just make one from scratch? DIY costumes are the perfect solution to any Halloween stumper. Our viewers gave us plenty of ...

While each product featured is independently selected by our editors, we may include paid promotion. If you buy something through our links, we may earn commission. Read more about our Product Review ...