NASA's GROVER eco-rover to examine Greenland's ice sheet
 

It may be fun, but sending NASA scientists on snowmobiles to survey ice floes isn't the most productive use of their time. That's why the agency has sent GROVER to do the job instead. The solar-powered Greenland Rover is an autonomous vehicle with ground penetrating radar that's been designed to examine how the ice flow has changed over time. As the Arctic sun will never drop below the horizon, GROVER will be able to work 24 hours a day, give or take the odd social media break.

http://www.engadget.com/2013/05/02/n... ign=Engadget