Fast radio signals are being generated by a mysterious source located approximately 3 billion light years from Earth.
What some people perceive as alien abductions might actually be sleep paralysis.
What if the aliens are hiding from us? Hiding a whole planet is easier than you think.
Breakthrough Listen kicks off the most powerful search for alien life.
If they exist, aliens give short shrift to humans as a food source.
Scientists search for narrow-band transmissions in outer space as a possible sign of extraterrestrial life.
The Obama administration offers some hope but no change on the matter of extraterrestrial contact.
This is it! Scientists have finally found definitive proof of an alien civilization of incredible power! We found aliens! Oh, wait. Nevermind. It was a quasar?
MTV for Martians? Maybe not, but the idea of broadcasting into space is not as far out as you'd think!
Last time we mentioned the time when Soviet radio astronomers went public about listening in on radio signals from an alien civilization. As it turned out, what they were actually listening to was a quasar: the blazing core of a galaxy that can emit radio waves that fluctuate in a regular pattern. So regular, in fact, that people thought it was an alien intelligence. Learn more on this Moment of Science.