Publication Date:
2016-06-07
Description:
Comets, carbonaceous chondrites, and interstellar clouds are discussed in relation to information on interstellar dust. The formation and presence of carbon in stars, comets, and meteorites is investigated. The existence of graphite in the interstellar medium, though it is predicted from thermodynamic calculations, is questioned and the form of carbon contained in comets is considered.
Keywords:
LUNAR AND PLANETARY EXPLORATION
Type:
NASA. Goddard Space Flight Center Space Missions to Comets; p 113-137
Format:
application/pdf