What would aliens actually look like? While simple life forms like bacteria may be common in the universe, complex ...

Astrobiologists in Germany are developing a new testing device that could help tease dormant alien microbes into revealing themselves — and its key ingredient is a common amino acid that’s found in ...

There’s no data to suggest that aliens exist. However, if we believed they existed and came to Earth, our planet would offer ...

Purple bacteria use infrared light for photosynthesis, offering a way to detect life on other planets through unique infrared signatures. Hurricane Melissa Live Updates: Category 5 Monster Has Jamaica ...

Since the 1950s, humanity has been searching for extraterrestrial life with increasingly sophisticated tools. But after decades of space probes, meteorite analysis, radio telescopes, and UFO ...

With the release of Disclosure Day, Steven Spielberg’s new film about aliens, a question as old as science fiction itself resurfaces: if aliens were to arrive on Earth, would they come to conquer us, ...

Finding bacteria in extreme environments, like at thermal ocean vents or in the sulfur pools at Yellowstone, isn't all that novel. In 1991, remote-control robots brought out samples of pitch-black ...