Mercury Is Shrinking More Than Thought
The latest views of the planet settle a decades-old argument about its evolution
Stories by Alexandra Witze
NASA Funding Shuffle Alarms Planetary Scientists
Agency restructuring will postpone a major grants program for one year
Remnants Suggest Comet ISON Still Going
First given up for dead, the "dirty ice ball" may have partially survived its close brush with the sun
Nationwide Seismic-Monitor Array Nears Completion
The ambitious program to blanket the contiguous 48 states with a movable array will also now reach Alaska
NASA Missions Struggle to Cope with Shutdown
The Curiosity, Opportunity, LADEE and Juno missions are still operational, but other spacecraft are grounded for now
Dark Matter Signals Recorded in Minnesota Mine
Detectors at the Cryogenic Dark Matter Search have recorded three events that may represent collisions from weakly interacting massive particles
Mars Rover Finds Evidence of Ancient Habitability
The Curiosity rover's first drill-sample analysis at the Red Planet reveals clay minerals that formed in water that was slightly salty, evidence of an environment that could have once supported life...
