Space
- Planets
Pluto and the plutons
A new definition would raise the number of planets in the solar system from 9 to 12.
- Planets
Lakes on Titan
Saturn's giant moon Titan appears to be sprinkled with lakes of liquid methane.
- Space
Dead star exploding
Huge nuclear explosions have ripped the outer layers off a dense, nearby star.
- Space
Banana Split in Space
Astronomers have spotted an odd pair of banana-shaped features in a planet-forming cloud around a nearby star.
- Space
Blast from the Past
Pieces of an ancient asteroid that created a 70-kilometer-wide crater survived the blast.
- Planets
The Way a Comet Crumbles
Astronomers are getting a close look at a comet that's falling apart as it nears the sun.
- Planets
Xena’s Mysterious Sparkle
Orbiting beyond Pluto, the recently discovered 10th planet reflects a lot of light.
- Planets
Saturn’s Strangely Warm Moon
Saturn's mysterious moon Enceladus may have liquid water close enough to its surface to produce giant geysers.
- Planets
Jupiter’s Second Red Spot
Several huge storms have merged to give Jupiter a second red spot.
- Planets
Saturn’s rings created by collision
A shattered moon may have produced Saturn's dazzling rings.
- Planets
Fiery Dust from an Icy Comet
Dust samples from a comet contain minerals that form only at high temperatures.
- Space
Predicting Solar Storms
Violent activity at and near the sun's surface produces giant storms that can affect Earth.
