10 Well-Documented UFO Incidents That Sparked Real Investigations And Left People With More Questions Than Answers

Related: 18 Of The "Biggest Historical Lies" People Somehow Still Believe Despite Evidence To The Contrary ...
Scientific American

Could aliens in another galaxy see dinosaurs on Earth?

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