NASA will spend $10 million in 2010 studying three competing proposals for missions that would probe the atmosphere and crust of Venus, drop a robotic lander into a south-pole basin on the Moon or return samples from a near-Earth asteroid, the U.S. space agency announced Dec. 29.

The three finalists, picked from among proposals scientists sent in last summer in response to NASAโ€™s first New Frontiers solicitation since 2003, will be given 12 months and $3.3 million to show that their missions can be ready to launch no later than Dec. 30, 2018, for no more than $650 million, not including the launch vehicle.

The finalists are: The University of Colorado, Boulderโ€™s Surface and Atmosphere Geochemical Explorer, or SAGE, mission to Venus; the University of Arizona in Tucsonโ€™s asteroid-bound Origins Spectral Interpretation Resource Identification Security Regolith Explorer, or Osiris-Rex, mission; and Washington Universityโ€™s MoonRise lunar sample-return mission. NASAโ€™s Jet Propulsion Laboratory would manage the Venus and Moon missions, while the agencyโ€™s Goddard Space Flight Center would manage the asteroid mission.

NASA intends to make its final selection in mid-2011.