Space
- Space
Bon voyage, Voyager 1
A spacecraft launched more than three decades ago has entered the space between stars.
- 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.
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- Space
Feasting black hole
A huge gas cloud is being stretched, shredded and destroyed by the black hole at the center of the Milky Way.
- Physics
Black hole mysteries
Scientists are just getting to know the black holes that help anchor our cosmos.
- Space
New, older age for the universe
Telescope peers back to see the first light after the Big Bang.
- Planets
Out-of-this-world atmospheres
Light from a distant, giant world offers clues to the gases in its atmosphere.
- Space
Martian microbes, maybe
Billions of years ago, Mars could have been teeming with very small Martians.
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- Space
Where cosmic rays are born
New evidence links origin of these very energetic particles to massive explosions of distant stars.
- Planets
Home on the moon
Astronomers say rocky moons orbiting distant planets might support alien life.
