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 ...

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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.

This Halloween, you plan on having a costume that is truly out of this world. No, seriously — you plan on going as an alien. Since we have yet to discover any otherworldly neighbors, this is the ...