TY - GEN AU - Beaty,David W AU - Clifford,Stephen M AU - Borg,Lars E AU - Catling,David C AU - Craddock,Robert A AU - Des Marais,David J AU - Farmer,Jack D AU - Frey,Herbert V AU - Haberle,Robert M AU - McKay,Christopher P AU - Newsom,Horton E AU - Parker,Timothy J AU - Segura,Teresa AU - Tanaka,Kenneth L TI - Key science questions from the second conference on early Mars: geologic, hydrologic, and climatic evolution and the implications for life SN - 1531-1074 PY - 2006///0216 KW - Evolution, Planetary KW - Extraterrestrial Environment KW - chemistry KW - Geography KW - Geological Phenomena KW - Geology KW - Life KW - Mars KW - Meteorological Concepts KW - Water N1 - Publication Type: Journal Article; Research Support, Non-U.S. Gov't; Research Support, U.S. Gov't, Non-P.H.S UR - https://doi.org/10.1089/ast.2005.5.663 ER -