This animated piece illustrates the recent escape of NASA's Mars
Exploration Rover Opportunity from dangerous, loose material on the vast
plains leading to the rover's next long-term target, "Victoria Crater."
A series of images from the front and rear hazard-avoidance cameras make
up this brief movie chronicling the challenge Opportunity faced to free
itself from the ripple dubbed "Jammerbugt." Each quadrant shows one of the
rover's four corner wheels: left front wheel in upper left, right front
wheel in upper right, rear wheels in the lower quadrants. The wheels
became partially embedded in the ripple at the end of a drive on
Opportunity's 833rd Martian day, or sol (May 28, 2006). The images in
this clip were taken on sols 836 through 841 (May 31 through June 5, 2006).
Scientists and engineers who had been elated at the meters of progress the
rover had been making in earlier drives were happy for even centimeters
of advance per sol as they maneuvered their explorer through the slippery
material of Jammerbugt. The wheels reached solid footing on a rock outcrop
on the final sol of this sequence.
The science and engineering teams appropriately chose the ripple's
informal from name the name of a bay on the north coast of Denmark.
Jammerbugt, or Jammerbugten, loosely translated, means Bay of Lamentation
or Bay of Wailing. The shipping route from the North Sea to the Baltic
passes Jammerbugt on its way around the northern tip of Jutland. This has
always been an important trade route and many ships still pass by the bay.
The prevailing wind directions are typically northwest to southwest with
the strongest winds and storms tending to blow from the northwest. A
northwesterly wind will blow straight into the Jammerbugt, towards shore.
Therefore, in the age of sail, many ships sank there during storms. The
shore is sandy, but can have strong waves, so running aground was very
dangerous even though there are no rocks.
Fortunately, Opportunity weathered its "Jammerbugt" and is again on its
way toward Victoria Crater.
