Planets

Planets

Seeing the moon’s water

Rocky details of our moon can be gleaned without the aid of visiting astronauts. The latest example: An orbiting spacecraft may have just spotted water locked within surface rocks.

Planets

Out-of-this-world atmospheres

Light from a distant, giant world offers clues to the gases in its atmosphere.

Planets

Meteor explodes over Russia

Surprise: No one saw it coming.

Planets

Home on the moon

Astronomers say rocky moons orbiting distant planets might support alien life.

Planets

Ice on Mercury

MESSENGER spacecraft provides evidence for frozen water on planet closest to sun.

Planets

A diamond planet?

Distant, carbon-rich world could contain one-third its weight in gems that are relatively rare on Earth.

Planets

New planetary neighbor

Nearest star system has a world that's Earthly in size, but too hot for human visitors.

Planets

Curiosity’s watery find

Mars rover finds rocks that show where water once flowed.

Tech

Curiosity lands on Mars!

NASA successfully delivered a $2.5 billion robotic vehicle to Mars, one that will explore for signs that the planet might once have hosted life

Planets

Worlds beyond the solar system

Planet hunters have found hundreds of exoplanets, but none just like Earth.

Planets

Moon twinkles

Flashes of light on the moon’s surface come from cooling, superhot liquid.

Planets

Distant ‘Goldilocks’ world

Planet-hunters find a just-right world outside the solar system.