Science - SPACE.com

Two astronauts raced through the second spacewalk of their docked shuttle mission at the International Space Station Saturday, getting so far ahead of schedule they took on jobs scheduled for future excursions. Full Story »

Astronaut Randy Bresnik may be expecting his wife Rebecca to give birth, but that hasn't shaken his focus for a planned spacewalk outside the International Space Station today to install new video antennas and other equipment. Full Story »

NASA has joined astronaut Randy Bresnik, who is in orbit now, in the waiting game for the birth his daughter, just one day before the spaceflyer is poised to make his first spacewalk. Full Story »

Astronauts on the linked shuttle Atlantis and International Space Station said Friday that they're not worried about recent false alarms that disrupted their sleep with erroneous reports of calamity. Full Story »

WASHINGTON - The camera that captured many of the Hubble Space Telescope's most famous images and the "contact lenses" that focused the observatory's flawed mirror debuted Wednesday at the Smithsonian's National Air and Space Museum in Washington, D.C. along with the first phase of a new interactive gallery devoted to humans living and working in space. Full Story »

NASA's stuck Mars rover Spirit took a tiny step Thursday, its first progress in months, during the latest attempt to extricate the robot from deep Martian sand. Full Story »

An aerospace engineer from Maine, the reigning champion of NASA's Astronaut Glove Challenge, held onto his title Thursday to win first prize in a competition to build a better space glove than those worn by astronauts today. Full Story »

New images show the "last meal" of a giant cannibal galaxy as it gobbles down a smaller spiral galaxy, which has been twisted and warped from being devoured. Full Story »

It may be the mother lode of all bad timing: Atlantis shuttle astronaut Randy Bresnik is stuck at the International Space Station, hundreds of miles from his pregnant wife Rebecca, who is expected to give birth to a baby girl as early as today. Full Story »

Dark energy isn't good for life in the universe. This mysterious substance, which cosmologists believe makes up around 70 percent of the universe, may eventually pull apart galaxies, then stars and planets, and finally atoms and molecules, in what some call the Big Rip. Full Story »