It’s summer again in the southern hemisphere of Mars, so we’re continuing our mosaic of the landing ellipse for the lost Mars Polar Lander. ESP_013368_1035 was the first of the new images to be released, and we’ve gotten a lot of people asking where to send their candidates. You can either contact us directly, or add to the comments in our previous blog post about the search.

The Unmanned Spaceflight forums have a long discussion on the previous search efforts. Many candidates were proposed, and the community’s discussion about them is quite enlightening.

Emily Lakdawalla at the Planetary Society also started a coordinated search effort last year. I don’t know if that effort is still ongoing, but her page on how to use HiRISE images in the search is still a great resource. It includes examples of known hardware, cosmic ray hits and other artifacts, and more tips on searching.

In addition to the list of images on the previous blog entry, these new images have been released: (we’ll try to keep this list up to date as more are released)

• ESP_013368_1035
• ESP_013078_1030
• ESP_013223_1025
• ESP_013289_1035
• ESP_013566_1025
• ESP_013500_1035
• ESP_013711_1030
• ESP_013724_1030
• ESP_013935_1030
• ESP_013790_1035
• ESP_014001_1040
• ESP_014080_1040

Thanks for all your interest, and good luck searching!

9/2/09: ETA new images released in September PDS release.

In our last PDS release, HiRISE made available our images (to date) of an area where the Mars Polar Lander is suspected to have crashed in 1999. MPL was the first mission to the high latitudes of Mars, but failed mysteriously, the first [Correction: second] of two high-profile failures in America’s Mars program at the time. An assessment team found a number of potential causes of the crash; the condition of MPL, if found, may help to resolve what actually happened.

There is a large area covered at high resolution in these images. I think some of our team members have looked over the images but they have not found a trace of MPL. You may in fact be the first person to see MPL in the nearly ten years since it left Earth.

In the wake of MPL, NASA canceled a planned 2001 lander. The University of Arizona, which had a significant presence in both missions, proposed the Phoenix Mars Scout mission, “rising from the ashes” of these missions. Phoenix, as you might expect, it said to be very thoroughly tested. On 2008 May 25th, Phoenix will be landing in the high northern latitudes (above the equivalent of the Arctic Circle on Earth).

In this PDF document graciously provided by Tim Parker, you can see what various types of hardware look like to HiRISE. It also shows examples of cosmic-ray hits in order to distinguish them from real space junk.

Here are links to our web pages providing information and downloads for our images of the MPL site.

• PSP_002846_1040
• PSP_003690_1035
• PSP_004336_1035
• PSP_004402_1030
• PSP_004824_1030
• PSP_004969_1035
• PSP_005035_1030
• PSP_005114_1035
• PSP_005180_1035
• PSP_005325_1035
• PSP_005391_1030
• PSP_005470_1035
• PSP_005536_1030
• PSP_005602_1035
• PSP_005747_1035
• PSP_005813_1030
• PSP_005892_1025
• PSP_005958_1025