A wide-ranging search of faraway galaxies has turned up no obvious signs of advanced alien civilizations.
Humanity is on the verge of discovering alien life, high-ranking NASA scientists say.
A NASA probe is about to get the first up-close look at a potentially habitable alien world.
The Milky Way may be home to some 3,000 extraterrestrial civilizations but the vast distances between our galactic cousins will make contact extremely rare, a new study concludes.
If Professor Hubert Farnsworth's 'Smell-O-Scope' actually existed, astrobiologists would have pointed it at dozens of alien planets by now.
Telltale pollution could reveal ET, study shows
Project aims to drop penetrating darts into planet surface.
Humanity will probably have to wait a few decades to find out if life is common beyond our own solar system.
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