Will MSL now land close to a methane rich area (in red)? Credit: NASA/JPL-Caltech
The recent story about methane being detected in Mars’ atmosphere has lead to huge interest around the world, simultaneously renewing fervent media speculation of the “is there/isn’t there life on Mars?” question. There is, as there often is in these things, a lot of excellent analysis of the news out there in the blogosphere. So I’ll point you to Emily at The Planetary Society and Discovery Space’s “Wide Angle” for the run-down, as well as Chris and Dave who tackle aspects of the political and journalistic back-story of the result.
One thing that has already been noticed by some, including Nature’s Eric Hand, is that one of the places that the methane appears to be originating from was also on the potential landing site list for NASA’s Mars Science Laboratory. It’ll be exciting now to see if the MSL, due for a 2011 launch, will be sent there or another of the methane rich areas. Wherever MSL is sent it will have to be able to touchdown right where the scientists want it to; which brings me nicely onto my plug. In the February issue of Sky At Night Magazine I have a new feature entitled “Landing a lab on Mars”, all about how the MSL will use an ingenious landing system to get down safely and precisely onto the red planet’s surface.
As for if there are gassy microbes on Mars? Well, MSL’s drill probably won’t be large enough to get deep enough beneath the Martian surface to sample what’s there. Maybe the planned ExoMars rover will just reach, with its 2 metre long drilling capability. But who knows exactly how far below the surface these processes (geological or biological) are actually occuring? It may be some time before a direct sample is made.
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