Dextre, the Canadian Space Agency's robotic 'handyman,' is featured in this image photographed by an Expedition 26 crew member aboard the International Space Station on Feb. 3. Dextre completed its first real job since the robot passed its final exam in December 2010, unpacking two critical pieces of equipment delivered by the unpiloted Japanese Kounotori2 H-II Transfer Vehicle (HTV2) spacecraft .
NASA scientists had challenged background checks that included questions about past drug use. The Supreme Court ruling sidesteps the issue of whether there is a right to informational privacy.
Meteor shower tonight: The first meteor display of 2011 – the annual Quadrantid meteor shower – will hit its peak tonight, weather permitting.
Another storm moved through California Wednesday after nearly a week of record rain saturated the state. Sierra Nevada snowpack critical to spring agriculture is at double its normal size.
A study by the Jet Propulsion Laboratory shows that the Baja earthquake in April acted in unexpected ways. It also could set off another major quake in three to 30 years.
Voyager 1: Since 2004, the Voyager 1 probe has been exploring a region of space where solar wind slows abruptly and crashes into the thin gas between stars.
Comet 55P/Tempel-Tuttle is responsible for the annual November show. The Leonid meteor shower 2010 is expected to be a modest affair, in terms of meteor sightings per hour.
NASA's James Webb Space Telescope will need $1.5 billion added to its $5 billion budget to live up to its scientific promise, a review panel estimates. But the prospects for Congress granting the money are dim.
The TRACE spacecraft observes a massive X-ray flare over solar active region AR9906, April 21, 2002.
Comet Hartley 2 will get its portrait taken on Thursday by NASA's EPOXI spacecraft. NASA will snap 6,000 high-resolution images of 103P/Hartley 2, a small comet that hangs out around Jupiter's orbit.