A reporter who visited CMU's Planetary Robotics Lab this week learned about the chief technical challenge of robotic lunar exploration: the heat. Roaming the Moon during the entire two-week daylight stretch is a tough job anywhere near the equator; solar radiation from above and heat radiating from the soil roasts a rover at 224 degrees Fahrenheit.

Her story gives good insight into how Astrobotic and CMU have attacked the thermal challenge:

http://pittsburgh.bizjournals.com/pittsburgh/stories/2010/03/29/story7.html?b=1269835200^3093571