Reaching 1 m Deep on Mars: The Icebreaker Drill Zacny, K. ; Paulsen, G. ; McKay, C. P. ; Glass, B. ; Davé, A. ; Davila, A. F. ; Marinova, M. ; Mellerowicz, B. ; Heldmann, J. ; Stoker, C. ; Cabrol, N. ; Hedlund, M. ; Craft, J. Abstract Publication: Astrobiology Pub Date: December 2013 DOI: 10.1089/ast.2013.1038 Bibcode: 2013AsBio..13.1166Z