NASA's hunt for alien life may be undermined by its own instruments, according to a group of leading astrobiologists who warn that current tools and mission designs are likely missing subtle, but ...

Scientists are listening in on sperm whale conversations and studying Earth's strangest microbes to prepare humanity for ...

The study warns that the search for alien life could be marred by the fear of 'false positives'.

Solar winds and coronal mass ejections may scatter narrow signals, making them harder for Earth-based telescopes to detect. The SETI Institute uses radio telescopes to search for signs of intelligent ...

The story of comet 67P/Churyumov-Gerasimenko and the European Space Agency's Philae spacecraft just got a whole hell of a lot more interesting. After a semi-botched landing resulting in the spacecraft ...

Add Yahoo as a preferred source to see more of our stories on Google. Everett (3) David Bowie as Thomas Jerome Newton in 'The Man Who Fell to Earth'; a Xenomorph in 'Aliens'; Scarlett Johansson as the ...

Signs is as much a meditation on mass media as it is on humans and extraterrestrials, providing an honest and often surprising perspective on what it would be like to witness an alien invasion (we can ...