Sorry, fans of The X-Files.
The search for little green men in outer space could be a futile one, according to an upcoming study in The Journal of Cosmology and Astroparticle Physics.
The reason? Because human beings might be the oldest form of intelligent life in the universe, according to the researchers at Harvard and Oxford who are behind the new study. Basically it means that the universe is still waiting for space aliens to be born.
Avi Loeb, a professor of science at Harvard University. He is the lead author of the study looking at how old intelligent life is in the universe, to be published in The Journal of Cosmology and Astroparticle Physics
Seth Shostak, Senior Astronomer and Director of the Center for Study Research at the SETI Institute in Mountain View, California