September 17, 2012 U.S. astronaut Sunita Williams is now in command of the International Space Station, after receiving control of the facility this weekend. Three departing astronauts whose capsule left the station early Monday landed safely three and a half hours later.
September 12, 2012 Our lives are based on conventions that seem rock solid when they aren't, at least in comparison with cosmic time-scales. The duration of a day changes in time, determined by the gyrations of the Earth-Moon pair.
September 10, 2012 New results from research by the University of Maryland and the Tokyo Institute of Tecnnology indicate that our solar system may, in fact, be quite unusual.
September 7, 2012 Nobody imagined that the rings around Saturn might be fed by geysers. But some of the water vapor shot out by one of Saturn's moons actually makes it into orbit around the planet.
September 6, 2012 Images taken by an orbiting satellite and by the rover itself offer fascinating views.
September 5, 2012 Astronauts aboard the International Space Station took a spare toothbrush along on a spacewalk today and used it to help clean debris from around some bolts. What do you use them for? (Besides brushing your teeth, that is.)
September 5, 2012 Watch as a massive flare shoots from the sun and stretches a half million miles into space. Friday's event dealt Earth's magnetic environment a "glancing blow," NASA says.
August 27, 2012 "I am, and will ever be, a white-socks, pocket protector, nerdy engineer, born under the second law of thermodynamics, steeped in steam tables, in love with free-body diagrams, transformed by Laplace and propelled by compressible flow," Neil Armstrong said in 2000.