Space
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SpaceDwarf planet discord
A dwarf planet at the fringes of the solar system finally gets an official name.
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PlanetsA Puffy Planetary Puzzle
Astronomers spot an unusual object orbiting a nearby star.
By Eric Jaffe -
SpaceDark collision
Observations of a tremendous galactic crash point to invisible stuff called dark matter.
By Eric Jaffe -
PlanetsPluto and the plutons
A new definition would raise the number of planets in the solar system from 9 to 12.
By Emily Sohn -
PlanetsLakes on Titan
Saturn's giant moon Titan appears to be sprinkled with lakes of liquid methane.
By Emily Sohn -
SpaceDead star exploding
Huge nuclear explosions have ripped the outer layers off a dense, nearby star.
By Emily Sohn -
SpaceBanana Split in Space
Astronomers have spotted an odd pair of banana-shaped features in a planet-forming cloud around a nearby star.
By Eric Jaffe -
SpaceBlast from the Past
Pieces of an ancient asteroid that created a 70-kilometer-wide crater survived the blast.
By Emily Sohn -
PlanetsThe Way a Comet Crumbles
Astronomers are getting a close look at a comet that's falling apart as it nears the sun.
By Emily Sohn -
PlanetsXena’s Mysterious Sparkle
Orbiting beyond Pluto, the recently discovered 10th planet reflects a lot of light.
By Emily Sohn -
PlanetsSaturn’s Strangely Warm Moon
Saturn's mysterious moon Enceladus may have liquid water close enough to its surface to produce giant geysers.
By Emily Sohn -
PlanetsJupiter’s Second Red Spot
Several huge storms have merged to give Jupiter a second red spot.
By Emily Sohn