Follow Musk's description of the successful launch of the Falcon Heavy lift vehicle, which will give the U.S. a capability in space not seen since the Saturn V rockets of the Apollo era.
New research suggests that some 12,800 years ago, an astonishing 10 percent of the Earth’s land surface was consumed by fires, thanks to a cosmic impact.
The James Webb Telescope's 2 component halves had been undergoing testing in Houston. They're now at Northrop Grumman Aerospace Systems in California, about to be assembled.
January and March 2018 have 2 full moons. February has none. Astronomer David Chapman explains moon cycles and calendars, with a word about moon names in the indigenous Mi'kmaw nation of Canada's northern woodlands.
Terrestrial means more like Earth than Jupiter or Saturn. Water-rich means a potential for life. New insights about the 7 planets orbiting the nearby star TRAPPIST-1.