There could be nearly 38,000 intelligent civilisations in our galaxy - and some of them could be trying to contact us even as you read this, British scientists say.
If that sounds too far-fetched, rest assured that there are at least 361 such civilisations out there, say scientists from Scotland.
Be warned though - these Extra Terrestrials are likely to be clever than you.
Researchers collated data from the 330 planets known to man and worked out what proportion would be suitable for life. The results were then applied across the Milky Way, says the study which is reported in the International Journal of Astrobiology.
Duncan Forgan, a University of Edinburgh scientist who led the research, said Thursday a team of scientists worked on the assumption that intelligent life forms are most likely to be found in