Physics
Scientific paper
Dec 1989
adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1989esasp.302..237b&link_type=abstract
In ESA, Physics and Mechanics of Cometary Materials p 237-239 (SEE N90-19989 12-90)
Physics
Comet Nuclei, Comet Rendezvous Asteroid Flyby Mission, Core Sampling, Research Facilities, Return To Earth Space Flight, Test Facilities, Comets, European Space Programs, Experimentation, Laboratories, Nasa Space Programs
Scientific paper
The past and anticipated contributions of laboratory studies are described and evaluated. The extreme complexity of cometary phenomena and the existence of only very vague ideas on the microscopic and macroscopic structures of the nucleus make a firmer knowledge of the structure essential for the forthcoming Craf and Rosetta mission. A probable cometary material could be quite easy to drill through with the exception of the possible (rare) meteoritic debris, but very large scale laboratory drilling tests performed on all extreme cases are advised, to ensure that Rosetta returns to Earth with a deep core of cometary materials and not just a scooped surface sample.
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