Today's question comes from Aimee. Aimeewants to know, "During the various looking back on 2012 montages, we saw ashot of Neil Armstrong's footprints on the surface of the moon. Are hisfootprints still on the moon or would wind have made them disappear? Is there even wind on the moon? Myhusband says there probably isn't any wind because there wouldn't be anatmosphere like we have on earth."