NASA has selected a Mars robotic mission that will provide information about the Red Planet's atmosphere, climate history and potential habitability in greater detail than ever before.
Phoenix has photographed several dust devils dancing across the arctic plain this week and sensed a dip in air pressure as one passed near the lander.
NASA is funding work on an instrument that could check for biologically produced chemicals on Mars. The device may hitch a ride on Europe's 2013 ExoMars Rover mission.
Want to know what our intrepid rovers have been up to lately? In our latest Mars Rover report -- Spirit is cloud-watching and Opportunity is moving up in the world.
› View This VideoThis animation is a scientific illustration of the operation of NASA's Phoenix Mars Lander's Atomic Force Microscope, or AFM. The AFM is part of Phoenix's Microscopy, Electrochemistry, and Conductivity Analyzer, or MECA.
NASA astronomers are tracking asteroid 2007 WD5, which they calculate has a 1 in 75 chance of hitting Mars in late January.
› Play NowImages of the red planet.