Dark Forest Stories: Scooby-Doo [Final] ((TOP))

A regional dust storm kicked up on Sol 418, March 7, causing the tau -- a measure of how much sunlight cannot penetrate the atmosphere -- to rise to a high of 1.5 that afternoon, with visibility something like that in the thick darkness of a forest fire. That, in turn, slowed the solar-powered rover down. But once the storm subsided, the energy output from Spirit's solar panels went up - way up, by about 50 percent, and the rover was raring to go.

Dark Forest Stories: Scooby-Doo [Final]

041b061a72