Mathematics – Logic
Scientific paper
Dec 1999
adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1999baas...31.1583d&link_type=abstract
American Astronomical Society, DPS Meeting #31, late abstracts, #25.01; Bulletin of the American Astronomical Society, Vol. 31,
Mathematics
Logic
Scientific paper
The collection of Martian samples and their return on Earth is the key feature of the '03-'05 NASA-led Mars Sample Return missions. The scientific requirement for both '03 and '05 missions is to collect at least 500 gr. of samples each. The Italian Space Agency (ASI) is going to play the major role in acquiring the samples; as a matter of fact, 350 gr. of samples, out of 500 gr. total, will be collected by an ASI provided articulated drill, named DeeDri. DeeDre, mounted on the lander deck, will drill the surface of Mars in different locations, at a reachable distance from the lander, and at different depths. The primary mission goal is to feed the canister to be returned with the collected samples and after that, within the mission lifetime ( 90 sols), to feed the scientific instruments on board the lander for in-situ analysis, performing in the meantime, scientific measurements by its own. DeeDri will fulfil the NASA requirement for '03 to reach 0.5 m in depth, preserving stratigraphy if possible, with an upgradable design configuration. This will allow DeeDri to easily reach 5 meters, in the subsequent launch opportunities, paving the way to key scientific discoveries. If resources would be available on the lander, DeeDri will try to reach 1 m. depth even in 2003, performing, after the mission goals are fulfilled, a technological demonstration of its growing capabilities. So, drilling the surface of Mars, starting from 2003 and beyond, will be a crucial contribution of Italy and the Italian Space Agency to the Mars Exploration program and the fulfillment of its scientific main goals.
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