[SKRIVA] NASAs Mars-rover 2020

From: Ahrvid <ahrvid@xxxxxxxxxxx>
To: "skriva@xxxxxxxxxxxxx" <skriva@xxxxxxxxxxxxx>
Date: Sat, 2 Aug 2014 21:12:48 +0200
NASA har presenterat sin s k rover för landning på Mars 2020, och de experiment 
den bär med sig:
http://www.theregister.co.uk/2014/07/31/nasa_mars_rover_2020/

"NASA's next Mars rover will convert the Red Planet's atmosphere into 
oxygen  and collect rocks for return to Earth, see half a kilometre 
under the surface, and use stereo cameras to send back unprecedented 
snaps of the bleak world. ...  The droid will be an improved version of 
Curiosity, and the 
instrument packages will be tasked with finding evidence of past life on
 the planet and setting up systems that could allow humans to land and 
survive.Also included in the new rover is a sample collection system allowing 
the machine to store drilling samples for future analysis. Getting the sample 
cache back to Earth would be a huge challenge, but that's the point...
   "It's even possible that with the Mars 2020 rover some of the rocks 
that we interrogate look so intriguing that we will absolutely have to 
bring them back to Earth some day to use the best instruments available 
on Earth to determine whether these are signatures of life."
  NASA won't be using the Mars 2020 mission to send samples back itself, 
although it does have plans
 to retrieve samples during a separate mission. Curiosity v2.0 will 
either hold onto its sample cache, or leave it behind for another 
mission, or possibly a human visitor, to pick up.
  The Mars 2020 rover will be very similar to Curiosity, using many of the
 same parts and designs. This allows NASA to save over half a billion 
dollars in costs, but even so it will cost about $1.9bn to get the 950kg
 package from here to Mars and employ a team to control it. ...
  A second camera, dubbed SuperCam, will be used to take close-up 
images of rocks and mineral formations and scan them for signs of former
 (and maybe even current) life on the Red Planet. Supercam will work in 
concert with the Planetary Instrument for X-ray Lithochemistry (PIXL), a
 X-ray fluorescence spectrometer that can analyze rocks and dust in 
great detail.
A second spectrometer, the Scanning Habitable 
Environments with Raman & Luminescence for Organics and Chemicals 
(SHERLOC), will also be able to inspect rock samples using an 
ultraviolet (UV) laser  the first time such equipment has been sent to 
Mars.
 The new rover will also carry its own weather station, 
dubbed the Mars Environmental Dynamics Analyzer (MEDA), which will 
measure temperature, humidity and wind speed. The Spanish-built 
instrument will also be able to analyze the shape and consistency of 
Martian dust particles.
  Norwegian scientists are also building an 
instrument for the trip  the Radar Imager for Mars' Subsurface 
Exploration (RIMFAX). This powerful ground-penetrating radar will be 
able to peek up to half a kilometer down under the rover and give 
unprecedented access to Mars' geology as the machine rolls across the 
planet.
  Finally, and most importantly for human exploration, is the Mars 
Oxygen ISRU Experiment (MOXIE). This instrument will try to extract 
oxygen from the horrible Martian atmosphere by breaking down carbon 
dioxide.
NASA said that if MOXIE worked it would enable a manned 
Mars mission to have oxygen ready and waiting when they arrived by 
sending remote oxygen generators to the surface ahead of time. The 
oxygen could keep future astronauts alive and be used for rocket fuel to
 power their return trip."


En imponerande uppsättning instrument. Högupplösande kameror som kan leta 
livstecken. Radar som når 500 m ned i marken. Försök att utvinna syre ur 
marsatmosfären. M m.
  Hoppas bara att rovern lyckas landa oskadd. Omkring hälften av alla 
landningsförsök på Mars misslyckas.
  Vad hette E R Burroughs bok nu igen? John Carter and the Rovers of Mars?


--Ahrvid


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[SKRIVA] NASAs Mars-rover 2020

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