NASA'S EXploration Roadmap 0506m700810111211415161192021222225 [Initial CEV Capability 1st Human Lunar Outpost Buildup CEV Flight 7th human Lunar Robotic Missions Lunar Landing Science Robotic Missions Mars Expedition Design Commercial Crew/Cargo for ISS Space shuttle Ops CEV Development Crew Launch Development CEV Production and Operations Early Design Activity Lunar Lander Development +4444444444 Lunar Heavy Launch Development 4+4444444444 Earth Departure Stage Development Note: Specfic dates and m stones not yet established. CEVICLV Surface Systems Development availability planned by 2014. and potentia y sooner. Return to the moon as early as 2015, but NLT 2020