Our solar system has some prime locations (besides Earth) for alien life.
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.
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