Space radiation may be to blame for corrupted memory used by the Curiosity Mars rover's flight computer, resulting in software glitches that interrupted the flow of science data Wednesday. Read More...

SpaceX readied a Falcon 9 rocket and Dragon cargo ship for launch Friday to deliver more than 2,300 pounds of science gear, spare parts and crew supplies to the International Space Station. Read More...

An innovative NASA X-ray telescope working in concert with a European Space Agency satellite has measured the rotation of a supermassive black hole lurking at the heart of a distant galaxy. Read More...

A wealthy space tourist announced plans Wednesday to launch a high-risk manned flight to Mars in 2018, sending a man and a woman on a bare-bones 501-day round-trip flyby.
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The Curiosity rover's power drill has successfully collected its first subsurface sample, about a tablespoon of powdered rock that will be fed into the spacecraft's on-board laboratory instruments for detailed analysis. Read More...

NASA's Kepler spacecraft has discovered a solar system 210 light years from Earth with the smallest planet yet found orbiting another sun-like star. Read More...

A procedural issue during a software update aboard the International Space Station Tuesday briefly knocked the lab's satellite communications system out of action, but the problem was quickly resolved.
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As predicted, a 150-foot-wide asteroid streaked safely past Earth Friday just hours after a spectacular meteor over Siberia that shattered windows and injured hundreds due to flying debris. Read More...

An asteroid a half a football field across is expected to safely pass within just 17,200 miles of Earth on Friday, a record close encounter that will carry it well inside the orbits of communications satellites. Read More...

A Russian supply ship loaded with 2.9 tons of supplies and equipment blasted off Monday and flew a fast-track trajectory to docking with the International Space Station just six hours later. (UPDATED)
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An Atlas 5 rocket blasted off from California Monday and boosted a new Earth-watching Landsat into its planned polar orbit to kick off an $885 million mission to monitor the planet and its resources. (UPDATED) Read More...

In a long-awaited milestone, the Curiosity Mars rover successfully drilled into a martian rock, prompting NASA science chief John Grunsfeld to declare the nuclear-powered robot fully operational. Read More...

A new study indicates some 60 percent of the galaxy's most ubiquitous stars likely host planets smaller than Neptune and about 6 percent host Earth-size worlds orbiting in the so-called "Goldilocks" zone. Read More...

In an emotional memorial, the widow of the shuttle Columbia's commander recalled their last meeting the day before launch and the devastation the families felt when they learned their loved ones had perished.
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