英和和英

出典:『Wikipedia』 (2011/04/30 19:26 UTC 版)

英語による解説

引用

Planetary protection is the term used to describe a guiding principle in design of an interplanetary mission that aims to prevent biological contamination of both the target celestial body and the Earth. This principle arises from the scientific need to preserve planetary conditions for future biological and organic constituent exploration – especially exobiology/astrobiology. The incorporation of geoethical issues in planetary and space research and astrobiology widens the classical concept of Planetary protection, considering, besides the organics-bearing perspective, the abiotic nature and all features of the planetary bodies and their planetary geodiversity. It also aims to protect the Earth and its biosphere from potential extraterrestrial sources of contamination in the event of a sample return mission. The need for planetary protection measures is strongest for missions designed to return a sample of another planet or celestial body to the earth.