Terrestrial and Extraterrestrial Fullerenes

Extraterrestrial and Terrestrial Fassaite Compared : Allende CV 3 versus

Introduction: Meteoritic Al-, Ti-rich clinopyroxene, first reported in CAIs in the Allende and Vigarano CV3 chondrites, was termed “fassaite” and found to be structurally similar to terrestrial fassaite by crystal structure refinement by [1]. Unlike terrestrial fassaite, it lacks Fe but contains significant Ti and Ti [1,2]. Al enters both the octahedral and tetrahedral sites via Tschermak’s sub...

15. Paleolimnology of Extreme Cold Terrestrial and Extraterrestrial Environments

[Extrasolar terrestrial planets and possibility of extraterrestrial life].

Recent development of research on extrasolar planets are reviewed. About 120 extrasolar Jupiter-mass planets have been discovered through the observation of Doppler shift in the light of their host stars that is caused by acceleration due to planet orbital motions. Although the extrasolar planets so far observed may be limited to gas giant planets and their orbits differ from those of giant pla...

Resistance of Bacillus endospores to extreme terrestrial and extraterrestrial environments.

Endospores of Bacillus spp., especially Bacillus subtilis, have served as experimental models for exploring the molecular mechanisms underlying the incredible longevity of spores and their resistance to environmental insults. In this review we summarize the molecular laboratory model of spore resistance mechanisms and attempt to use the model as a basis for exploration of the resistance of spor...

Multiplication of microbes below 0.690 water activity: implications for terrestrial and extraterrestrial life.

Since a key requirement of known life forms is available water (water activity; aw ), recent searches for signatures of past life in terrestrial and extraterrestrial environments have targeted places known to have contained significant quantities of biologically available water. However, early life on Earth inhabited high-salt environments, suggesting an ability to withstand low water-activity....