We don't know if there are aliens on the moon, but we DO know that NASA has uncovered evidence of what it calls "primitive aliens" on Titan, one of Saturn's biggest moons.
NASA concluded this after its Cassini probe analyzed the complex chemistry if the surface of Titan. But other astronomers say the moon is too cold to have liquid water and thus it can have no life.
However, NASA has also noted hydrogen gas flowing throughout Titan's atmosphere, meaning that alien life could breathe.
In the Telegraph, Andrew Hough quotes NASA astrobiologist Charles McKay as saying, "We suggested hydrogen consumption because it's the obvious gas for life to consume on Titan, similar to the way we consume oxygen on Earth.
"If these signs do turn out to be a sign of life, it would be doubly exciting because it would represent a second form of life independent from water-based life on Earth."
Hough quotes astronomer John Zarnecki as saying, "We believe the chemistry is there for life to form. It just needs heat and warmth to kick-start the process. In four billion years' time, when the Sun swells into a red giant, it could be paradise on Titan."
Maybe we should go there next. But before we escape the earth, which we are rapidly destroying, we need to find a better way to travel in space. So why aren't we doing this yet?
In 1998, a mysterious man that Whitley Strieber calls the Master of the Key burst into his hotel room in Toronto and told him all kinds of things he didn't know, such as the provocative statement that we are stuck on this planet because the parents of the child who would have given us the ability to travel into space was killed in the holocaust!