Another bittersweet day for the American space program: After having a delicious breakfast, astronauts boarded the space shuttle Endeavour, her last flight ever and the penultimate flight for the shuttle program. Watch the video here. The mission name is STS-134 and, so far, everything seems perfect and in place. NASA TV commenters were just talking about how smooth everything went this time which, given the problems in recent months,...

As part of Saturday’s International Observe the Moon Night, NASA fired a ton of lasers at the moon. They weren’t declaring war on alien life form, or trying to melt the cheese, but instead tracking the Lunar Reconnaissance Orbiter. NASA can locate the orbiter by shooting 28 laser beams every second at it, and while it’s moving at 3,600 miles an hour, and is 250,000 miles away from Earth, it’s still not too fast...