Comet explores sun!

Comet explores sun!

In 2011, a suicidal comet brushed the sun — showing a swirling magnetic field, the source of dangerous “space weather.” What did we More »

Ancient water = ancient habitat?

Ancient water = ancient habitat?

Geologic dating shows that water has been trapped more than 2 kilometers underground since before the Cambrian explosion. This water More »

Exploring a volcano

Exploring a volcano

Watch volcanologists track a giant volcanic field in Chile — site of the fastest uplift on Earth. Laguna del Maule could change our c More »

Horrific Hurricanes

Horrific Hurricanes

How do hurricanes form? How do we predict their paths? How can we improve predictions? More »

Galactic rays

Galactic rays

Scientists have tracked a light beam that’s half-a-million light years long to a monster black hole and found that the hole and its More »

Super-volcanoes!

Super-volcanoes!

Take a modern volcano, and multiply it by 1,000. That’s a super-volcano. Their rare eruptions change landscapes and weather. How long More »

Dunewatching, Martian style

Dunewatching, Martian style

New pix from Mars show sand dunes on the move. Mars has been dry for 1.5 billion years; could massive erosion be due to wind? Yes, says More »

Chasing neutrinos at the South Pole

Chasing neutrinos at the South Pole

Neutrinos are odd: Extremely difficult to see, they travel through mass with scarcely a trace. A 1-billion ton detector in South Pole More »