[Utah-astronomy] Frontiers of Science

Guess, this is the first post.  The lecture was great.  Dr. Litchenberg was very knowledgeable, interesting and entertaining.  This link should go to a series of pictures taken.  The last photo is a backup wheel for the Curiosity rover .  Was surprised at how lightweight it was.  Probably 90-95% of the weight is in the hub.  The rubber is stiff but extremely light.  The wheels are getting trashed, traveling over sharp rocks on the Martian surface.  http://s1245.photobucket.com/user/joancarman/media/Frontiers%20of%20Science/... Sorry some of you missed it - maybe next time :)