Results 101 to 110 of about 78,262 (284)
Meteoritics &Planetary Science, EarlyView.Abstract It has been proposed that IIE iron meteorites formed through impact processes on a parent body that was composed of either the H chondrites or a much‐debated fourth ordinary chondrite group, the HH chondrites. To resolve this debate, we have compiled a large dataset for the ordinary chondrites, low‐fayalite ungrouped chondrites, and IIE irons,
Rachel S. Kirby +2 more
wiley +1 more source
Perchlorates on Mars enhance the bacteriocidal effects of UV light
Scientific Reports, 2017 Perchlorates have been identified on the surface of Mars. This has prompted speculation of what their influence would be on habitability. We show that when irradiated with a simulated Martian UV flux, perchlorates become bacteriocidal.
Jennifer Wadsworth, Charles S. Cockell
doaj +1 more source
Meteoritics &Planetary Science, EarlyView.Abstract Silica polymorphs in meteorites provide critical constraints on crystallization processes associated with thermal activity in the early solar system. A detailed investigation of silica polymorphs in eucrites (the largest group of achondrites) using cathodoluminescence imaging and laser‐Raman spectroscopy revealed significant variations in the ...
Rei Kanemaru +14 more
wiley +1 more source
New approaches to the exploration: planet Mars and bacterial life
, 2011 Planet Mars past environmental conditions were similar to the early Earth, but nowadays they are similar to those of a very cold desert, irradiated by intense solar UV light. However, some terrestrial lifeform showed the capability to adapt to very harsh
Bertoloni, Giulio +2 more
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The breakup of Martian boulders
Physics Today, 2013 The rate at which boulders have disintegrated on the surface of Mars can be estimated thanks to an unusual geomorphological formation. The rate at which boulders have disintegrated on the surface of Mars can be estimated thanks to an unusual geomorphological formation.
openaire +4 more sources
Women in space: A review of known physiological adaptations and health perspectives
Experimental Physiology, EarlyView.Abstract Exposure to the spaceflight environment causes adaptations in most human physiological systems, many of which are thought to affect women differently from men. Since only 11.5% of astronauts worldwide have been female, these issues are largely understudied.
Millie Hughes‐Fulford +4 more
wiley +1 more source
UniverseIn recent decades, extensive research has led to the understanding that Mars once hosted substantial liquid-water reserves. While the current Martian landscape boasts significant water-ice deposits at its North and South poles, the elusive presence of ...
Junyi Zhou +6 more
doaj +1 more source
Improving the Accuracy of the Martian Ephemeris Short-Term Prediction
Advances in Astronomy, 2018 The Chinese Mars exploration mission is planned to be launched in 2020, which includes an orbiter, a lander, and a rover. High precision Martian ephemeris is very important in Mars exploration, especially for the Martian orbit insertion and the Martian ...
Quan Shan +5 more
doaj +1 more source
Carbon reservoirs on Mars: Constraints from Martian meteorites [PDF]
, 2003 We have measured the abundance and stable isotopic composition of magmatic carbon extracted from a suite of shergottites. The results confirm previous findings that primordial carbon on Mars is isotopically lighter than that of the ...
Grady, Monica, Wright, Ian
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Experimental Physiology, EarlyView.Abstract Long‐duration spaceflight impacts essentially every system in the human body, resulting in multisystem deconditioning that might impair the health and performance of crewmembers, particularly on long‐duration exploration missions to Mars. In this review, we apply the sport science model of athlete monitoring, testing and training to astronauts;
Luke DeVirgiliis +8 more
wiley +1 more source