Space
- 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.
- Space
Spotlight on an Exploding Star
A sudden burst of radiation has drawn astronomers to the early stages of a star explosion.
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- Space
Supernovas Shed Light on Dark Energy
Astronomers have new evidence that something called dark energy is revving up the expansion of the universe.
- Planets
Evidence of a Wet Mars
An orbiter provides new details about when and where liquid water existed on Mars.
- Space
Gravity Tractor as Asteroid Mover
A huge spacecraft could use its gravity to keep an asteroid from hitting Earth.
- Planets
Pluto’s New Moons
Astronomers have spotted two objects that may be previously unknown moons of Pluto.
