Hoax. Someone already tore it up with photoshop on how they put it together.

And aliens aren't that hard to believe in. Statistically speaking, it's more likely there is something out there than not, as Carl Sagan happily showed us (man I miss that show!). UFOs is a bit of a stretch and assumes FTL travel is possible. Not sure where I'm at on that.

The only reason to believe there is no other life in the universe is if your religious beliefs are as such. If so, that's your right.