Press release material for 9/25/2009 Byrne et al. Science paper






Please use credit line: NASA/JPL-Caltech/University of Arizona






Site 1 fading
Ice exposed in two crater bottoms fades from view over the course of the martian summer in this series of HiRISE images taken in late-2008/early-2009. Sublimation of the ice leaves behind a dust layer that gradually thickens to the point where it obscures the ice. Each panel is 75m (250 feet) across.

HiRISE image IDs (left to right, top row; then left to right, bottom row)
  • PSP_009978_2265, Ls 126
  • PSP_010189_2265, Ls 134
  • PSP_010334_2265, Ls 139
  • PSP_010400_2265, Ls 142
  • PSP_010901_2265, Ls 162
  • ESP_011323_2265, Ls 180




Site 2 fading
Ice excavated from the subsurface, by a crater 6m (20 feet) in diameter, sublimates away over the course of the martian summer. Each of these HiRISE images are 35m (115 feet) across and were taken in October 2008 and January 2009.

HiRISE image IDs
  • PSP_010440_2235, Ls 144
  • ESP_011574_2235, Ls 191




Site 3
Ice has been excavated from the subsurface and deposited nearby by this crater which is 8m (26 feet) in diameter. This HiRISE image is 50m (164 feet) across and was taken in November 2008.

HiRISE image ID
  • PSP_010625_2360, Ls 151




Site 4 fading
Ice excavated from the subsurface, by a crater 6m (20 feet) in diameter, sublimates away over the course of the martian summer. Each of these HiRISE images are 35m (115 feet) across and were taken in October 2008 and January 2009.

HiRISE image IDs
  • PSP_010585_2255, Ls 149
  • ESP_011442_2255, Ls 185




Site 5 fading
Ice excavated from the subsurface, by a crater 12m (40 feet) in diameter, sublimates away over the course of the martian summer. Each of these HiRISE images are 35m (115 feet) across and were taken in November 2008 and January 2009.

HiRISE image IDs
  • PSP_010861_2265, Ls 160
  • ESP_011494_2265, Ls 188



final_figS1_revised.pdf - shows regional context
CTX images of the regional context centered on each impact site. Insets in the top-right of each panel are 1km (0.6 miles) across. Top panels show the CTX image pair that led to the discovery of the site 1 impact; other panels show post-impact views of sites 2-5. All panels have north at top and are illuminated from the lower-left.




Please use credit line: NASA/JPL-Caltech/University of Arizona






shane@lpl.arizona.edu


The background image is of Phoebe, a moon of Saturn. It was acquired by the Cassini spacecraft in June of 2004. See here for the original image and more info.