SUNSET: 
A Solar Tsunami
On August 1st, the Sun let loose with a mighty belch that rippled across its face, sent a torrent of high-energy particles racing into space, and triggered a burst of auroras on Earth.
Bull's-Eye Crater on Mars
Whether caused by two strikes on the same spot or strange layering beneath the Martian surface, this newly imaged crater is a fascinating find.
WISE Takes a Look (All) Around
NASA's latest space observatory has just completed a six-month-long sweep of the entire sky at infrared wavelengths.
Strange Twists in Saturn's Rings
Thousands of mysterious, propeller-shaped features have been found in Saturn's A ring. Could these hold the key to the ring system's origin?
Rosetta Visits a Big Space Rock
A European-built comet chaser swept past asteroid 21 Lutetia today, offering glimpses of what might be a largely metallic body that's 100 miles across.
Planck's View of the Universe
A new all-sky map is showing cosmologists both the nearby, current universe and the faint echoes from its creation 13.7 billion years ago.
Hayabusa's Waiting Game
Tiny particles have been found inside the capsule returned to Earth three weeks ago by the Hayabusa spacecraft. Are they bits of asteroid Itokawa — or contamination from the Australian landing site?
A Tidal Wave of Exoplanet Candidates
NASA's Kepler mission has found more than 700 stars that seem to have planets crossing their faces, mission scientists have announced. But it will take a lot of followup to separate the real ones from the false alarms.
Welcome Home, Hayabusa!
In a thrilling tale of triumph over adversity, the Japanese probe Hayabusa slammed into Earth's atmosphere over Australia on June 13, 2010.
Japanese Craft Sail Off to Venus
Are volcanoes erupting on Venus? Does lightning zap the planet's atmosphere? A new interplanetary probe aims to answer these questions and many others.
NASA's Administrator Visits Boston
Charles Bolden, who took the reins of NASA last July, made an appearance in Boston last week and offered some views about the space agency's future.
Herschel's Cold, Wonderful Universe
European astronomers are ecstatic about the results they're getting from an infrared space observatory launched a year ago.
Amateurs Alert NASA to Saturn Storm
Thanks to the vigilance of planet-watchers around the world, Cassini scientists have captured key observations of a storm that erupted into view during mid-March.
Happy Birthday, Hubble!
It's been 20 years since the most productive telescope ever built rocketed into orbit. So let's celebrate!
Readying for Hayabusa's Return
When the Hayabusa spacecraft returns to Earth on June 13th, an international welcoming party will be waiting in Australia to spot and recover its sample-return capsule.
Sparks on Saturn
NASA's Cassini orbiter has finally captured images of lightning storms on the ringed planet.
Hayabusa Hits the Homestretch
Against all odds, a crippled Japanese spacecraft has managed to limp back home after its asteroid encounter 4½ years ago. It's now less than three months from a triumphal return to Earth.
A Blast from the Past
An exquisite new image from NASA's Lunar Reconnaissance Orbiter shows the crater gouged out when a Saturn IV-B rocket slammed into Oceanus Procellarum 40 years ago..
NASA to Upgrade, Overhaul Its "Big Ears"
Day in, day out, the radio antennas of NASA's "Deep Space Network" handshake with dozens of spacecraft across the solar system. Now the network's three stations are getting improvements that will keep them operating for decades.
Ski Luna!
Geologists once believed the Moon was utterly dry. But just-announced results argue that abundant water ice lies stashed inside lunar craters near the north pole.
