Effort to find civilizations not from Earth.
1
Nasa once funded the search for extra-terrestrial intelligence to the tune of $10m a year.
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His backing for the search for extra-terrestrial intelligence (Seti) marks a sea change in attitudes to a field regarded until recently as fringe science.
3
Initial observations using the Search for Extra-Terrestrial Intelligence (SETI) Institute's Allen Telescope Array in California have turned up empty.
4
SETI, or Search for Extra-Terrestrial Intelligence, involves several million people who have downloaded software that analyzes data from distant galaxies for signs of alien life.
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