NASA's been speculating about water on Mars for years now, so I suppose it could mean that there's simple, single-celled life on Mars.
Colonization of our red neighbor won't happen for many years, though NASA is planning a colony on the Moon, and, IIRC, it's planned to be opperational by 2020 and inhabitable by 2024. The colony was said to be a launch pad towards a manned mission to Mars.
They also said something about retireing the Space Shuttle, though I can't recall a date, if one was given.