LIGO Detects Its Third Set of Gravitational Waves Announced today, the third confirmed event recorded by LIGO could be its most exciting observation yet. By Amy Thompson
Scientists Figure Out Clue That May Help in Search for Earth-Like Alien Planets Flashes of light seen from 1 million miles away could help deduce which planets can harbor life. By Michael Sainato
This Week in Tech History: First YouTube Video, Hubble Launched Oil from the Deepwater Horizon rig spilled into the Gulf of Mexico for 87 days, while a video of a man at the zoo took over the Internet. By John Bonazzo