SUNSET: 
Rosetta Spots Its Comet
The European Space Agency’s comet-chasing spacecraft has imaged its destination for the first time since waking up from 957 days of hibernation.
Chariklo: An Asteroid with Rings
An international team of observers has made the surprising discovery that a distant asteroid has two distinct, dense rings.
New Object Offers Hint of "Planet X"
Astronomers have kicked around the idea of a distant "Planet X" for decades. But the recent discovery of 2012 VP<sub>113</sub>, located in an orbital "no man's land" roughly twice as far away as Pluto, has stoked the possibility that it really exists.
Active Volcanoes on Venus?
New images of Venus show features that look like hot spots, hinting there may be active volcanoes on the planet today.
Interactive Mosaic of Moon's North Pole
With the first interactive lunar north pole mosaic released by the NASA’s Lunar Reconnaissance Orbiter Camera team you can explore an area of the Moon’s northern hemisphere about the size of Alaska and Texas combined.
The Incredible, Shrinking Mercury
Now that they've seen all of the innermost planet up close, geologists realize that Mercury's crust buckled and fractured as the planet cooled and shrank far more than previously measured.
Source Crater for Martian Meteorites?
A team of European researchers believe that a big, fresh-looking crater on Mars is the likely launch pad for many of the Martian meteorites found on Earth.
Hubble Catches a Crumbling Asteroid
The Hubble Space Telescope has photographed a never-before-seen event: an asteroid breaking up into pieces.
A Meteorite Lights up the Lunar Night
Astronomers have witnessed the largest lunar impact to date. With an impact energy equivalent to 15 tons of TNT — approximately 3 times as great as the previous record-holder — the flash was visible even to the naked-eye.
Unveiling Ganymede
Get an eyeful of the solar system’s largest moon — a world of ancient, crater-packed plains and broad swaths of younger grooved terrain that defies easy explanation.
Curiosity Navigates the Crossroads
NASA’s Mars Science Laboratory — Curiosity — has successfully crossed a sand dune standing between the rover and its final science destination.
New Splat on Mars
NASA’s Mars Reconnaissance Orbiter HiRISE camera captured this stunning image of a fresh impact on the Martian surface.
Mixed Message from Asteroid Belt
New compositional map of the main asteroid belt shows that minor planets are not strongly grouped by composition, as had been thought, but instead are mixed up.
Shedding Light on Circumbinary Systems
Astronomers are beginning to understand the unlikely formation and dangerous survival of exoplanets circling binary stars.
First Mercury Globe Now Available
Sky & Telescope announces the first-ever globe of Mercury, pieced together from the latest images taken by the Messenger spacecraft. It's now available on our online store!
"Dwarf Planet" Ceres Exhales Water
There'll be a new wrinkle facing NASA's Dawn spacecraft when it reaches Ceres next year: what's causing this big round ball to give off puffs of water vapor?
The End of Rosetta's Big Sleep
Europe's comet-chasing spacecraft woke up after a 957-day-long hibernation to begin the most comprehensive comet study to date. Part of its mission: attempt to place an instrumented lander on a comet’s nucleus for the first time.
Small Asteroid 2014 AA Hits Earth
Spotted on New Year's Eve by a telescope in Arizona, a small asteroid struck Earth over the Atlantic Ocean — apparently unnoticed — less than one day later.
Chang'e 3 Brings Rover to Lunar Surface
For the first time since 1976, a spacecraft has landed safely on the Moon. Within hours, the Chinese spacecraft Chang'e 3 had deployed an instrumented rover.
Curiosity Finds a Once-Habitable Mars
Ancient Mars seems to have had all the necessities as a comfy habitat for microbial life.
