Astronomers have searched the skies for signs of extraterrestrial technology for decades. These searchers since 1960 have ...

But the real truth is that alien life on other planets could be even stranger than floating balloons or amorphous organisms ...

How big would a telescope need to be to see Earth’s dinosaurs from 66 million light-years away? Think big—and then think ...

Life on Earth may not have started here at all. A scientist says alien intervention is unlikely but still possible, reshaping the debate on our true origins.