Earth's Place in the Universe
- Physics
Closing in on fusion energy
Scientists blasted a tiny capsule of hydrogen with laser beams, setting off a reaction that released more energy than in earlier experiments. Still, scientists remain a long way from creating a reaction that releases more energy than it needs to get started.
- Earth
How Earth’s surface morphs
Partly melted rock acts like grease to help huge masses of the planet’s surface slip up, around and down.
- Climate
Watching our seas rise
Satellites, coral reefs, ancient Roman fishponds and sinking cities help us understand how humans are changing sea level.
- Planets
A shock to the solar system
Scientists suspect a nearby exploding star ignited the formation of the sun and planets.
- Science & Society
Introducing the 2011 Nobel Prize winners
Scientists in 2011 won for making unexpected discoveries about crystals, the human body and the universe.
- Planets
Double sunsets on a distant world
Astronomers discover for the first time a planet circling two stars.
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- Planets
Possible new saltwater stains on Mars
Dark streaks that grow in spring, fade in winter may point to saltwater on the Red Planet.
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- Space
The dark side of the universe
Most of the cosmos is invisible, but that doesn’t stop scientists from searching for it.
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