SUNSET: 
A Time to Soar
Sky & Telescope contributing editor David Levy reports on Spacefest 2009, which is billed as "The Ultimate Space Show."
Earth-and-Sun Diamond Ring
Japan's Kaguya spacecraft, orbiting the Moon, captured this spectacular interplanetary vista as both the Sun and Earth rose over the lunar horizon on February 9th.
Gamma-Ray Burst Hints of Space-Time Foam
Observations from NASA’s orbiting Fermi observatory hint that extremely high-energy gamma rays don't travel at the speed of light. If more observations bear this out, it will rock the foundations of physics, hint at small-scale "space-time foam," and perhaps point the way to a "theory of everything."
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.
Coming Home
Sky & Telescope contributing editor David H. Levy heads back to his alma mater in Nova Scotia, Canada, to teach, remember, and reflect.
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.
Happy Birthday, Mr. Lincoln
On February 12th, the United States celebrates the 200th birthday of the country's 16th president. Discover how celestial events highlighted his life.
Did the Moon Do a Face Flip?
We're taught that tidal locking of the Moon's spin and orbit has always kept its near side facing toward Earth. But a new study challenges that long-held notion.
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.
Amateur-Achievement Award Winner
Amateur astronomer Steve Mandel receives the American Astronomical Society's Chambliss Award for his pioneering work searching for galactic nebulae.
COROT Finds the Smallest Exoplanet Yet
Astronomers have found the smallest transiting exoplanet yet, with a silhouette only about 1.7 Earth diameters wide. It's also the fastest-orbiting planet known, with a "year" lasting 20 hours.
An Old Warrior Telescope Lives On
A unique telescope, built by a unique man, finds new life in New Mexico as Sky & Telescope contributing editor David H. Levy explains while "On the Road."
Let's Google Mars
The world's most fascinating mapping utility now works on another planet.
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?
HD 80606b: The Hotheaded Exoplanet
Astronomers have found a "hot Jupiter" whose atmospheric temperature jumps nearly 1,300°F in just six hours! That gives a whole new meaning to "global warming."
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!
Researchers Discuss Frozen Worlds
A hot topic at December's AGU meeting was the various geological processes on frigid bodies in the solar system.
Obamastronomy
Imagine if America's leaders had to have an astronomical background? Sky & Telescope contributing editor David H. Levy has been thinking about that.
