The group leading the charge in the search for extraterrestrial life has given the all clear: An interstellar comet looks to be completely natural and free of any alien tech. The SETI Institute said ...

Is kelp the key to carbon capture? This startup thinks so ...

Alien: Earth includes three different types of high tech lifeforms created by mankind, but one of them is old news from the perspective of the characters. During the panel for the new Alien TV series ...

Every few years, a new “mystery metal” surfaces and the internet races to declare it proof that we are not alone. Shiny shards, polished spheres, and desert monoliths are quickly framed as alien ...