We know that we have lost Schiaparelli; the second attempt
by the European Space Agency to land on the surface of Mars, and the second to
fail. On Christmas Day 2003 Beagle 2
landed successfully, but failed to unfold all four of its solar panels, and so was
never able to radio Earth.
In December 2015 the HiRISE camera on the Mars
Reconnaissance Orbiter imaged the landing site, and showed us how close it had
come to working.
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| Beagle 2 model at Liverpool Spaceport. Mike Peel |
While at first it seems there is little of happiness to take
from the failure of a probe that hundreds of hard working scientists and
engineers have poured years of effort in to, that is not the case at all. There is a very positive take home from this
whole enterprise.
Schiaparelli was a test bed designed to try out Europe's new
landing system, and while the landing became a crash, so much engineering data
was uplinked to the ExoMars Trace Gas Orbiter, that ESA is still waiting to
recover it all. The next time a larger
version of this system will be used is in 2020 to deliver a combined Russian
and European rover to look for traces of life on Mars. Believe me,
the data recovered from a failure will allow the platform to be made
significantly more reliable. Nothing teaches more about possible failure modes than actually having one.
The main part of this mission is the Trace Gas Orbiter,
which successfully inserted in its initial elliptical orbit, and is now
aerobraking to adjust its speed and orbit in to a 400 km high circular orbit. In seven months time it will start mapping
the Martian atmosphere, in part to tell us if the Methane we have found before
has a geological, or possible, biological origin.
But for me the best thing to happen is the pictures that are
coming out, for these really show what we are capable of.
It’s only been three days, but already we have some very
exciting images, with the prospect of more to come.
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| NASA / JPL / MSSS / ESA / Emily Lakdawalla |
This GIF is from the fantastic blog of planetary geologist and science writer, Emily Lakdawalla, and shows a before and after of an area within Schiaparelli's landing zone. These images were taken with the Mars Reconnaissance Orbiter's context camera, and have a six meter resolution, meaning each pixel is about six meters across. In a few days time MRO should be in the right place for the HiRISE camera to image the area. It has a resolution of one meter, or better.
It can take pictures like this one of the Opportunity rover. It was 300 miles above it at the time!

Have a look at a much larger version here.
Schiaparelli came down on the Meridiani Planum, the same plain that Opportunity is currently on, and indeed an attempt was made to image the landing using the mast-cam on Opportunity.
This picture came out earlier.
We can now be sure that this is just cosmic radiation hitting the electronics in the mast-cam, and that at a distance of 54km, Schiaparelli was too far away, and too low on the horizon for Opportunity to have any chance of spotting it.
Mars has no magnetic field, and so there is a lot more cosmic ray activity at the surface than on Earth. All cameras on Mars take numerous images of high energy particles. This is a better example, also seen while waiting for Schiaparelli.
The most hopeful and positive aspect of all of this, is that you and I live in a time when humanity can gather this data, take these images, and share them between thousands of fascinated individuals. The technology that we have on Mars, combined with the technology we have on Earth make this a golden age of discovery and investigation. An age that all of us are invited to partake in.





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