EPOXI at Comet Hartley 2.

Authors :: A'Hearn, Michael F.
Belton, Michael J. S.
Delamere, W. Alan
Feaga, Lori M.
Hampton, Donald
Kissel, Jochen
Klaasen, Kenneth P.
McFadden, Lucy A.
Meech, Karen J.
Melosh, H. Jay
Schultz, Peter H.
Sunshine, Jessica M.
Thomas, Peter C.
Veverka, Joseph
Wellnitz, Dennis D.
Yeomans, Donald K.
Besse, Sebastien
Bodewits, Dennis
Bowling, Timothy J.
Carcich, Brian T.
Source :: Science. 6/17/2011, Vol. 332 Issue 6036, p1396-1400. 5p.
Publication Year :: 2011
Abstract: The article focuses on cometary research and the Extrasolar Planet Observation and Deep Impact Extended Investigation (EPOXI) unmanned space mission. It states EPOXI flew past comet Hartley 2 on November 4, 2010 and took photographs and spectrographic measurements. It comments that Hartley 2 has a small and active nucleus that is outgassing carbon dioxide which drags particles of ice out of the nucleus. It talks about the comet's surface geology and the average geometric albedo and on differences between Hartley 2 and the comet Tempel 1.