Image: NASA rover Opportunity's selfie shows clean machine
Friday, April 18, 2014 - 08:00
in Astronomy & Space
In its sixth Martian winter, NASA's Mars Exploration Rover Opportunity now has cleaner solar arrays than in any Martian winter since its first on the Red Planet, in 2005. Cleaning effects of wind events in March boosted the amount of electricity available for the rover's work.