While the moon is uninhabitable today, this might not have been the case billions of years ago.
Researchers from Washington State University and the University of London believe that there could have been life of some kind on the moon in the distant past.
Researchers suggest that there may have been aliens on the moon during two separate periods that occurred shortly after the moon was formed: the first, 4 billion years ago, and then another 3.5 billion years ago.
The researchers claim that during these periods, the moon might have had conditions that could support simple life forms. This was the time when the moon was spewing out vast amounts of very hot gases, including water vapor that might have formed into liquid water on the surface.
Dirk Schulze-Makuch, an astrobiologist at Washington State University, said, “If liquid water and a significant atmosphere were present on the early moon for long periods of time, we think the lunar surface would have been at least transiently habitable.”
The history of life on Earth began about 3.8 billion years ago
During that time, the solar system was a violent place marked by frequent meteorite impacts. Scientists believe that it is possible that some life could have been carried up to the moon in the wake of one of those blasts.