SUNSET: 
A Problem with Pluto's Moons
The discovery of two tiny moons circling the most famous "dwarf planet" has raised concerns that the New Horizons spacecraft might be endangered when it flies by in July 2015.
Planet Found in Alpha Centauri System
Astronomers announced what might be the closest exoplanet to Earth, a roasted Earth-mass world whipping around the Sun-like star Alpha Centauri B.
Set Your Crescent-Moon Record?
A thin young crescent Moon will be visible from North America this evening, Tuesday October 16th, weather and eyesight permitting. It may be a chance to set your young-Moon record.
Sky at a Glance | October 12th, 2012
Jupiter has been climbing into good view a half hour earlier every week, accompanied by a grand retinue of celestial objects seen and unseen. On the other side of the sky, Mars is finally passing rival Antares in twilight.
Freshest Mars Rock has Hints of Water
An international team of scientists has teased apart the secrets hidden inside a meteorite from Mars, including signs that the rock weathered acidic water while on the Red Planet.
Star Draws Spiral
ALMA observations have revealed a spiral buried inside a shell surrounding the star R Sculptoris. While not the first of its kind discovered, the spiral does show that the star is hiding something.
Meteor Storm Brewing for 2014?
Dynamicists know for certain that on May 24, 2014, Earth will plow through a dense stream of dust particles shed by the periodic comet 209P/LINEAR. The only question is: how intense will the assault be?
S&T's Iceland Aurora Adventure
Join Sky & Telescope on the aurora adventure of a lifetime in April, 2013! Walk through a rift valley, witness magnificent waterfalls and the Strokkur geyser, bathe in the Blue Lagoon, and best of all, maximize your chances of seeing the beautiful Northern Lights.
World-Class Telescope For Sale
The impending closure of the United Kingdom Infrared Telescope might be averted if the observatory’s director can find a buyer.
Draconid Meteor Outburst: Lots of Radar Meteors, Few Visual
Radar started showing up to 2,200 Draconid meteors per hour as of midday Monday for North America, but by nightfall here it was basically over. Even in darkness in Europe, few were seen by eye.
Sky at a Glance | October 5th, 2012
Algol eclipses itself. Telescopic action happens at Jupiter. And after pairing up with Jupiter, the waning Moon passes Regulus and Venus late in the week at dawn.
Astronomy and Stargazing Projects
A Star Count for Everyone
Take part in this year's Great World Wide Star Count, and you'll be joining thousands of other "citizen scientists" in raising dark-sky awareness around the globe.
ESO Celebrates Its History and Future
On October 5th, the European Southern Observatory and the Australian Square Kilometer Array Pathfinder will broadcast live webcasts to celebrate years gone by and new beginnings.
Comet Hergenrother Puts on a Show
Astronomers predicted that Comet 168P/Hergenrother wouldn't get any brighter than 15th magnitude this month. But the comet had other ideas: an ongoing outburst has brightened it to within reach of medium-size backyard telescopes.
Star Zips around Black Hole
Astronomers announced that they've successfully tracked a star that takes less than 12 years to whip around the Milky Way's central black hole. The star isn't so special on its own, but combined with other observations it might help unwrap the region's mysteries.
Big Meteoroid Boomerangs Around Earth
Late on September 21st, a bright fireball broke apart as it skimmed the atmosphere over northwestern Europe — then it became a temporary satellite, looping completely around the planet before its searing finale over eastern North America.
Sky at a Glance | September 28th, 2012
The Harvest Moon wanes from full almost down to last quarter this week, stepping past the Pleiades, Aldebaran, and Jupiter along the way.
Curiosity Finds Ancient Streambed
NASA's newest rover has found strong evidence near its landing site inside Gale crater that vigorous steams of liquid water once flowed across the Martian surface.
Astronomers Approach Black Hole
The Event Horizon Telescope team has unmasked the heart of the jet-shooting galaxy M87, paving the way for astronomers to discover how black holes create their superpowered streamers.
A "Dream Comet" Heading Our Way?
Veteran skywatchers are trying to contain their enthusiasm for Comet ISON, which, late in 2013, could become the brightest comet in decades.
