1. Exploring Mars and beyond : what's next for U.S. planetary science : hearing before the Subcommittee on Space and Aeronautics, Committee on Science, Space, and Technology, House of Representatives, One Hundred Twelfth Congress, first session, Tuesday, November 15, 2011 Author/Creator: United States. Congress. House. Committee on Science, Space, and Technology (2011- ). Subcommittee on Space and Aeronautics, author Publication/Creation: Washington, DC : For sale by the Superintendent of Documents, U.S. Government Printing Office Resource Type: Book Access & Availability: Loading