Interplanetary GPS Comes a Step Closer
A ground simulator is constructed and a space-station test is planned
Mars Trips Pose Radiation Risk
Radiation measurements made by NASA's Curiosity rover put hard numbers on the space hazard
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How Kepler’s Pointing System Might Have Failed
Launch damage or radiation are most likely causes, says CEO of reaction wheel company
Can the Kepler Planet Hunting Telescope Be Saved?
A Stanford engineer says there might be a fix
Electric Space Sail to Get Its First Test
A small Estonian satellite will test an electrically-charged tether in orbit
Virgin Galactic's Spacecraft Goes Supersonic in First Rocket Test
Virgin Galactic's promise of space tourism creep closer with a rocket-powered flight test
Finding Mercury’s Water with Infrared Lasers and Neutron Counters
Two instruments on NASA’s MESSENGER probe confirm as much as 1000 cubic kilometers of water frozen in polar craters
Finding the Source of the Pioneer Anomaly
Thirty years ago, the first spacecraft sent to explore the outer solar system started slowing unexpectedly. Now we finally know what happened
Answers from Mars
PBS NOVA documentary highlights the engineers behind the Mars missions.
NASA’s Decline as Leader in Nanotechnology Research
Has the past decade's reduction in NASA's nanotechnology research impacted space exploration?
"Hubble Psychology” Causing NASA Program Cost Overruns?
NASA inspector general says that costs and deadlines aren't priorities to NASA program managers
We’ve Already Passed the Tipping Point for Orbital Debris
The longer we wait, the tougher and more expensive it will be to safeguard satellites
What Curiosity Will and Won’t Teach Us About Martian Life
NASA’s new Mars rover boasts an unprecedented suite of instruments, but it won’t be able to answer all our questions
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Curiosity’s 1-Ton Touchdown
The Mars rover will rely on dead reckoning and radar to land on the Red Planet
China's To-Do List This Week: Dock With Space Lab, Explore Mariana Trench
Two exploration exploits fuel national pride
New Communication Tech for Deep-Space Missions
The limits of the speed of light could overturn decades of NASA mission management
The Aliens Would Win
SETI astronomer and film consultant Seth Shostak weighs in on why correctly depicting alien life wouldn’t work in films
Dragon Capsule Lined Up for Docking
After capture by ISS' robotic arm, maneuvered into position
A Good Day for Elon Musk
A successful SpaceX rocket launch, an ahead-of-schedule delivery announced for the Tesla Model S, makes for a happy entrepreneur.
Scotch in Space
Ardbeg Distillary makes space scotch, but no one gets to drink it
Stepping Up the Search for E.T.
SETI Institute, TED, and the Science Channel team up for a new initiative to seek out new life and new civilizations
Construction Company Plans to Build a Space Elevator by 2050
Questions remain as to whether carbon nanotubes are up to the job
Did Bad Memory Chips Down Russia’s Mars Probe?
Moscow blames radiation wreckage on an SRAM chip, but does it add up?
Single Blue Planet Seeks Same
In 2012, a new exoplanet hunter will look for worlds like our own
Window Closes for Russia's Mars Mission
Russia's ambitious sample return mission to the Martian moon Phobos has reached the end of its original launch window
To Mars and Back Again
Russia's Phobos-Grunt mission - which aims to return to Earth with samples of the Martian moon Phobos - is set to launch this week
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China Launches First Space Lab Module
Successful blast-off is a step toward China's permanent space station
Armored Spacecraft Sets Course for Jupiter
Ensuring that NASA's Juno spacecraft could withstand Jupiter's harsh radiation environment came with a few challenges
Digital Soyuz Return Could Be Rocky
First mission has some kinks to work out
U.S. Air Force Drone Touches Down Amid Questions
Is it a high tech spy plane, a space-based weapon, or a scientific project platform?