Brian O'Brien, an Australian physicist, has figured out the secret of moon dust, or what is officially called regolith. Mr. O'Brien worked on the Apollo program back in the 1960s and his curiosity related to the Moon's surface continued all this time. Now it seems the amount of sunlight on the Moon's surface impacts the stickiness of the regolith. It appears the sun's radiation on the surface puts a positive charge on the regolith, causing it to stick to anything from a space suit to NASA instruments. What does this mean for future missions? Well, NASA will need to find a way to overcome this positive charge. Of course, one option is to work on the dark side of the Moon, but I am not sure anyone likes that idea just yet.In fact, NASA has been running regolith competitions for years to "promote the development of mechanical designs to excavate lunar regolith." NASA keeps adding money to the pot but no one has really come up with a winning design. The 2009 competition will be August 15-16. The rules for competing can be found here. Just think of it as an advance version of the Pinewood Derby.
