Phoenix Mars Lander investigators are preparing to dump another soil sample into its oven to heat the sample and perform a chemical analysis. Engineers warn, however, that the next time might be the last time.
The next such experiment will be the second. The first showed no evidence of life. Other tests, however, have shown water near the surface and water soluble elements present that are also involved in biological processes.
As reported in this blog, there was a problem getting soil in the oven the first time. Finally doing so required vibrating the screen over the oven to shake some soil loose. Unfortunately, that shaking also resulted in a short circuit, and engineers worry that another short circuit could end at least that part of the mission.
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