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

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

Advanced aliens could be chatting with each other using light flashes in plain sight, similar to how fireflies communicate, according to a new study that could lead to new approaches in finding ...