SUNSET: 
Fomalhaut's Disk and Fomalhaut's Spin
Way out in the circumstellar cold, a planet and a rubble disk orbit bright Fomalhaut. Does this have anything to do with the star's own rotation?
A Daring Pairing of Moon and Venus
Early risers today have a chance to see this beautiful crescent Moon slide past Venus in the dawn sky. This view by Johnny Horne was captured at 5:34 a.m. EDT at Wade, North Carolina
Spot Titan's Shadow on Saturn!
Take advantage of Saturn's nearly edge-on orientation to see Titan and its shadow crossing Saturn's bright face during April, May, and June.
A Murky All-Sky Background Is Resolved
It doesn't look like much today, but the far-infrared background radiation coming from all parts of the sky tells of a tumultuous early universe ablaze with starlight.
The Case of the Stolen Sundial
During his time at Caltech in the 1930s, Russell Porter cast this beautiful sundial to adorn the campus. But it was stolen sometime during the 1970s — do you know where it is?
S&T Now on Twitter
You can now follow Sky & Telescope on the social-networking service Twitter. Sign up to follow S&T, and you’ll be notified whenever we post new stories on our home page.
New Circumpolar Comet Yi-SWAN
On March 26, 2009, Korean amateur Dae-am Yi caught the small, greenish glow of a new comet with his Canon camera.
Best-Ever Southern-Sky Galaxy Survey
Take one telescope, use it to record the spectra of 150 galaxies at a time for 4½ years, and what do you get? Awesome 3D maps of deep intergalactic space — and important clues to how the universe works.
USAF to Track More Sats for Crashes
The debris-spewing smashup of a Russian and an American satellite last February is prompting the Air Force to step up its collision-predicting efforts.
IYA's 24-hour Scope-a-thon
Have you ever wanted to visit a famous observatory perched atop some faraway mountaintop? This weekend you can, thanks to the International Year of Astronomy's "Around the World in 80 Telescopes" — a live, 24-hour webcast.
Global Astronomy Marathon Underway
The largest astronomy public outreach event in world history got off to a flying start today with the official opening ceremony at the Franklin Institute in Philadelphia.
NASA Readies Hubble Mission — Again
For the second time in six months, a Space Shuttle is perched on a Florida launch pad, awaiting the chance to visit the orbiting Hubble Space Telescope for the last time.
100 Hours of Astronomy
100 Hours of Astronomy (100HA), taking place from April 2 to 5, will bring the Universe to millions of people worldwide via live online programs and thousands of public star parties.
Celestial News & Events
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Sunday's Virginia Fireball:
A Meteor, Not a Rocket Reentry
If you were outside at 9:40 on Sunday evening, March 29th, between Maryland and North Carolina, you didn't even have to be looking up.
Craters Reveal Ice in the Martian Dust
High-resolution images from orbit reveal tiny craters — created within the past year — surrounded by splashes of water ice dredged up from just below the Martian surface.
The Amazing Galileoscope
Sky & Telescope has reviewed innumerable telescopes, and only a handful of the ones that we've tried and liked cost less than $200. Now we're going to recommend a telescope that's selling for $20, and your response is going to be "you're kidding, right?" No, we're not!
Meteorites Found from Asteroid 2008 TC3
Last December a determined U.S. researcher traveled to Sudan to recover pieces of an asteroid that slammed into Earth's atmosphere only 19 hours after being spotted. It was a long shot that paid off beyond his wildest dreams.
(Drops of) Water on Mars?
Last year, as a camera aboard the Phoenix lander looked on, drops of supersalty water grew, merged, and even dripped on one of the spacecraft's landing legs.
Taking a Right Turn in Albuquerque
Last week David Levy visited Georgia O'Keefe Elementary School in Albuquerque, New Mexico, to help inspire young students to ask questions and connect with the night sky.
Comet Lulin on the Way Out
Now departing from both Earth and Sun, Comet Lulin is 7th magnitude and fading this week. But it's high in the evening sky, and there's no moonlight problem until around March 29th.
