Mars Rover Opportunity Escapes Sand Trap

NASA's Mars Exploration Rover mission engineers and managers cheered when images from the Martian surface confirmed Opportunity successfully escaped from a sand trap.

NASA - NASA's Opportunity Rover Rolls Free on Mars
http://www.nasa.gov/home/hqnews/
Wired News: Mars Rover Escapes Sand Trap
http://www.wired.com/news/space/0,2697,67747,00.html