SUNSET: 
Neil Armstrong, 1930 - 2012
The man who took humanity's first step on another world is no longer among us.
Watch Curiosity Descend onto Mars
See through Curiosity's eyes as it descends to the surface of the Red Planet.
Miss a Sky Event? There's an App for That
Sky & Telescope has released its new SkyWeek Plus app, which combines all the good stuff of our regular SkyWeek app with new reminder and breaking-sky-news features.
Do-It-Yourself Space Science
A California startup seeks to democratize space research by putting a tiny, custom-built satellite into orbit — and letting the public decide how to use it.
AMA Addresses Light Pollution
The American Medical Association has released a report detailing several possible health concerns related to nighttime light exposure. But some lighting researchers worry the conclusions are more alarmist than is warranted.
B612 Debuts Its Asteroid-Seeking Sentinel
Astronomers warn that it's not a question of "if" Earth will be hit by an asteroid, but "when." If a private group of space veterans has its way, a Sun-orbiting spacecraft will find threatening objects decades before they can strike us.
Wanted: A Little Common (Sky) Sense
When it comes to things astronomical, why do so many people with no knowledge of the sky try to figure things out for themselves — and come to the wrong conclusions?
All-Sky Survey Sees Millions of Stars
A collaboration between professional and amateur astronomers is producing a careful map of stellar brightnesses and colors across the entire night sky. The survey should fill a hole that sometimes hampers quick, accurate measurements of events such as supernovae.
Capturing the Beauty of the Night Sky
From Comet Lovejoy in the southern skies to the aurora borealis over Iceland, the winners of the 2012 International Earth & Sky Photo Contest find beauty in darkness and show the threat of increasing light pollution.
Millennial Calendar Found in Mayan Ruins
Never mind what the doomsayers tell you: Remarkable paintings in a room amid Guatemalan ruins prove that the ancient Maya knew more about celestial cycles than we thought — and that they didn't predict the world's end in December 2012.
"Supermoon" Overplayed by News Media
The full Moon of May 5, 2012, will be the year's closest — but not by enough to draw attention.
Celebrate Astronomy Day: April 25, 2012!
April 20th is Astronomy Day, when hundreds of astronomy clubs, observatories, museums, colleges, and planetariums worldwide host special family-oriented events and festivities that showcase the wonder and excitement of the night sky.
Hubble Celebrates as Shuttle Retires
Hubble is beginning celebrations early for its 22nd birthday with this composite image, a fantastic combination of ground- and space-based observations of the Tarantula Nebula.
Great Heights Reached with Gaffer Tape
Spectacular photos of Earth’s curvature from the atmosphere are just one balloon and camera click away. Able to reach an altitude of more than 20 miles, so-called space balloons are an inexpensive hobby for those with an eye for the sky.
Closure Looms for Keck Interferometer
With NASA funding ending, astronomers will soon shut down the optical plumbing that links the giant Keck telescopes — the most powerful interferometer of its kind on the planet.
NASA Taps a Rocket Scientist
With probes on the way to the Moon, Mars, and Pluto — and a multibillion-dollar space telescope gobbling up shrinking funds — astronomer and former astronaut John Grunsfeld agrees to take the helm of the space agency's science division.
ALCon Meets Under Dark Mountain Skies
With bright stars all night and amateur-astronomical enthusiasm all day, America's biggest coalition of astronomy clubs held a bang-up annual convention.
A Milky Way Masterpiece
Using a deceptively simple setup, Randy Halverson has captured the galaxy's motion across his South Dakota farm with breathtaking beauty and realism.
The March 19th "Supermoon": Hardly Super
Saturday's full Moon is indeed the closest and biggest in 18 years. But not by enough to notice.
New Images from Old Data
Find out how Joe DePasquale converted grayscale ESO data into beautiful full-color images as part of the Hidden Treasures competition.
