Europe’s second attempt at reaching
the Mars surface appeared in peril on 17 October as initial analysis suggested
a lander dubbled “Schiaparelli”, a test run for a future rover, may have
plummeted to its demise. While holding out faint hope, ground controllers said
it seemed the paddling pool-sized lander’s parachute may have been discarded
too early, and its fall-breaking thrusters switched off too soon. Schiaparelli
fell silent seconds before its scheduled touchdown, while its mothership Trace
Gas Orbiter (TGO) entered Mars’ orbit as planned – part of a joint
European-Russian quest for evidence of life on the red planet, past or present.
Further analysis must be done of some 600 megabytes of data Schiaparelli sent
home before its signal died, to “know whether it survived structurally or not.”
If not, this would be European second failed Mars landing in a row, joining a
string of unsuccessful at tempts by global powers to explore our planetary
neighbour’s hostile surface. The British built Beagle 2 robot lab disappeared
without trace after separating from its mothership, Mars Express, in 2003. Its remains
were finally spotted in a NASA photograph last year. Schiaparelli had travelled
for seven years and 496 million kilometres onboard the TGO to within a million
kilometres of Mars on Sunday, when it set off on its own mission to reach the
surface. The pair comprise phase one of the ExoMars mission through which
Europe and Russia seek to join the United States in probing the alien Martian
surface. The TGO is meant to sniff atmospheric gases potentially excreted by
living organisms, while Schiaparelli’s landing was designed to inform
technology for a bigger and more expensive rover scheduled for launch in 2020. The
six-wheel rover will be equipped with a drill to look for remains of past life,
or evidence of current activity, up to a depth of two metres. While life is
unlikely to exist on the barren, radiation-blasted surface, scientists say
traces of methane in Mars’ atmosphere may indicate something is stirring
underground – possible single celled microbes.
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