SUNSET: 
Dawn's Fleeting Fling with Mars
An asteroid-bound spacecraft sped past the Red Planet today, picking up speed and giving its instruments a little target practice.
Moon's Puzzling, Thick-Skinned Far Side
Ours is a two-faced Moon. The familiar side is mottled with vast plains of ancient lava. But the unseen far side has a thick, rigid crust that doesn't give up its secrets easily.
Cosmic Collision Over Siberia
Don't get too worked up about the pair of spacecraft that collided in orbit on February 10th.
Hayabusa Heads Home
Crippled by multiple system failures, a Japanese spacecraft continues its against-all-odds struggle to return to Earth after landing on an asteroid 3½ years ago.
A Supermassive Double Black Hole?
A far-off quasar seems to contain two giant black holes hurtling around each other less than a light-year apart. They're doomed to spiral together and join in a literally space-shaking crash — but when?
Hubble: You're in Control!
have you ever wanted to have a say in what the world's most powerful telescope looks at? From now until March 31st, you can!
Our Roving Martian Ambassadors
NASA's long-lived rovers, Spirit and Opportunity, have survived five (Earth) years on Mars, far exceeding their planned 90-day missions. How much longer can they last?
Hubble's Replacement Now Taking Shape
Testing has begun on the first of 18 mirror segments for NASA's James Webb Space Telescope, the gargantuan craft that will join the aging Hubble in space as early as 2013 — and eventually replace it as NASA's premier space observatory.
Martian Mega-Rover Gets a "Time Out"
Plagued by a technical obstacles that could threaten its success, a $2 billion Mars rover has been postponed two years by NASA officials. The Mars Science Laboratory's new launch date is 2011.
Betelgeuse is Making Waves
The famously red supergiant star that marks Orion's shoulder is creating an enormous shock wave as it plows through the interstellar medium. New infrared views from a Japanese space observatory called Akari show what's going on with unprecedented clarity.
Chandrayaan 1 is a Hit
India's first deep-space mission has chalked up another success during the first days of its two-year mission: slamming an instrumented probe into the lunar surface.
Sleuthing Reveals Mars's Watery Past
New findings announced this week suggest that the Red Planet may have had an ancient ocean after all and that buried glaciers of ice have turned up in surprising places.
Phoenix Chills Out, Mission Ends
As the Sun set slowly over the Martian polar plain, a dust storm robbed NASA's plucky lander of the sunlight it needed to operate.The craft's most recent and presumably final communication came on November 2nd.
Chandrayaan 1 in Lunar Orbit
So far, so good for India's first attempt to explore the Moon. Chandrayaan 1 is safely in lunar orbit after a two-week series of rocket burns.
Amazing Close-ups of Enceladus
Ever wonder what it'd be like to view the icy terrain of Saturn's enigmatically active moon as if you were just 12 miles above it? Now you can, thanks to Cassini's close brush with Enceladus on Halloween.
Mercury Gets a Second Look
When NASA's Messenger spacecraft flew past the innermost planet on October 6th, it mapped another 30% of the surface never before viewed by spacecraft and gave scientists tantalizing hints of what Mercury is all about.
Hubble Returns to Work
After a month-long hiatus caused by an electronics failure, the Hubble Space Telescope has resumed its observations of the cosmos. But a final house call by Space Shuttle astronauts will have to wait until NASA engineers can round up some spare parts.
India's First Moon Shot
There's a new player in deep-space exploration, as India launches a highly instrumented spacecraft destined for lunar orbit.
NASA Satellite Spots New Type of Pulsar
The Fermi Gamma-ray Space Telescope has made its first major discovery.
Giant "Hurricanes" Ring Saturn's Poles
NASA scientists are scratching their heads over the monstrously large swirls revealed by the Cassini orbiter at the planet's top and bottom.
