Scientists have identified a candidate "peak of eternal light" - a permanently illuminated area on the moon that could be used as a future lunar base. The site, which is near the northern lunar pole, was identified by the SMART-1 satellite, which has been monitoring the light levels at the poles since it arrived in orbit at the beginning of 2005.
http://www.theregister.co.uk/2005/04/18/smart_1_moonbase/