NASA to Begin Escape Attempt for Stuck Mars Rover

News
By published
A panoramic view of the Mars Rover Spirit showing the terrain surrounding the location called “Troy”
This full-circle view from the panoramic camera (Pancam) on NASA's Mars Exploration Rover Spirit shows the terrain surrounding the location called "Troy," where Spirit became embedded in soft soil during the spring of 2009. (Image credit: NASA/JPL-Caltech)

The effort to free NASA?s Spirit rover, currently mired insand on Mars, will begin in earnest today, when engineers team send the first escapecommands to the stuck robot to try to move out of its trap late tonight.

Spirit has been stuck in the Martian dirt since April, when droveinto a spot of soft terrain called "Troy" back in April.

Rover drivers decided that the best strategy would be tohave Spirit backtrack, moving forward to retrace the tracks that brought itinto its current predicament. (The rover's broken right front wheel has meantthat Spirit's primary mode of driving is backwards.)

The precarious nature of the embedding ? Spirit's wheels aredug in to their hubs, one wheel has stopped spinning and a rock is sittingunderneath the rover's belly, possibly even touching it ? means that the teamhas to be very careful about any movements they make with the rover.

"This is by far the most complicated and complex"embedding the team has had, said John Callas, project manager for the MarsExploration Rovers (MER) at NASA?s Jet Propulsion Laboratory in Pasadena,Calif.

If Spirit has not yet been freed by the time or the rovers'annual review rolls around in February, NASA officials will weigh whether tokeep trying, to keep Spirit where it is and continue doing science there or tocall it quits.

The team is upfront about the chances of getting Spirit out.Ray Arvidson, deputy principal investigator for the rovers (and based at Washington University in St. Louis) has told fans of Spirit to be "hopeful, butrealistic."

Join our Space Forums to keep talking space on the latest missions, night sky and more! And if you have a news tip, correction or comment, let us know at: community@space.com.

Andrea Thompson
Andrea Thompson
Contributor

Andrea Thompson is an associate editor at Scientific American, where she covers sustainability, energy and the environment. Prior to that, she was a senior writer covering climate science at Climate Central and a reporter and editor at Live Science, where she primarily covered Earth science and the environment. She holds a graduate degree in science health and environmental reporting from New York University, as well as a bachelor of science and and masters of science in atmospheric chemistry from the Georgia Institute of Technology.