China visits moon!

China visits moon!
As scientists find new surprises in Apollo’s 40-year-old rock collection, gravity studies by an over-achieving satellite duo provide a More »

Understanding the Russian asteroid

Understanding the Russian asteroid
The biggest asteroid to strike land in 105 years sheds light on where space rocks come from, how many more might hit us, and what we More »

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 »

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 »

Running out of space

Tommy and his spacedog point up to Spaceship One

With space shuttles in museums, the near-term American plan to return to space relies on other countries or private firms. What are the More »

Super View of Supernova

After 20 years, star explosion reveals more secrets. What gives in these giant bangs?

Star-Burst Fills Empty Hole

Where did all the dust come from? If you are interested in the origin of planets and human beings, here’s evidence that a star More »