Reports that a mysterious star could have been dimming due to the efforts of an alien race made headlines last month, though now researchers say extraterrestrials are probably not to blame. At least, are far as we can prove at this point.
Sci-fi has been around since just after the dawn of humankind—or, if you believe in ancient astronauts, sci-fi has been around since slightly before the dawn of man. We have to admit, it's a lot harder to disbelieve the notion that something otherworldly once walked among us after looking at these ancient paintings of just that.
Thousands of people have been brave enough (or crazy enough, depending on whom you ask) to come forward in the last half-century with tales of alien abductions in the dead of night. It's a widespread phenomenon, but researchers are adding fuel to the skeptic fire with claims that what you think of as a real experience was really just a "lucid dream."