Results 71 to 80 of about 35,859 (291)

3D SR‐μXCT analysis for lithology detection: Application to Ryugu sample A0159

open access: yesMeteoritics &Planetary Science, EarlyView.
Abstract Extraterrestrial breccia samples are formed through impact‐related processes that combine the fragments of distinct lithologies. As such, they are valuable indicators of the complex formation and evolution history of planetesimals in our solar system.
Léna Jossé   +9 more
wiley   +1 more source

Martian meso/micro-scale winds and surface energy budget [PDF]

open access: yes, 2011
Regional, diurnal and seasonal variations of surface temperature are particularly large on Mars. This is mostly due to the Martian surface remaining close to radiative equilibrium.
Forget, F.   +6 more
core  

Evolution of Water Reservoirs on Mars: Constraints from Hydrogen Isotopes in Martian Meteorites

open access: yes, 2014
Martian surface morphology implies that Mars was once warm enough to maintain persistent liquid water on its surface. While the high D/H ratios (~6 times the Earth's ocean water) of the current martian atmosphere suggest that significant water has been ...
Dohm, James M.   +6 more
core   +1 more source

Chromite in main group pallasite meteorites: Accessory mineral tracing planetesimal differentiation

open access: yesMeteoritics &Planetary Science, EarlyView.
Abstract Main group pallasite meteorites (PMG) are samples of an early, highly differentiated magmatic planetesimal dominated by olivine and metal‐sulfide‐phosphide assemblages with accessory chromite among other phases. This mineralogy reflects mantle‐ and core‐related reservoirs, but the relative contributions of each and the overall petrogenesis are
Seann J. McKibbin   +6 more
wiley   +1 more source

Martian Surface and Atmosphere Workshop

open access: yesEos, Transactions American Geophysical Union, 1992
The NASA‐sponsored Martian Surface and Atmosphere Through Time Study Project convened its first major meeting at the University of Colorado in Boulder, September 23–25, 1991. The workshop, co‐sponsored by the Lunar and Planetary Institute (LPI) and the Laboratory for Atmospheric and Space Physics at the University of Colorado, brought together an ...
openaire   +2 more sources

The Sands of Phobos: The Martian moon's eccentric orbit refreshes its surface

open access: yes, 2018
The surface of the Martian moon Phobos exhibits two distinct geologic units, known as the red and blue units. The provenance of these regions is uncertain yet crucial to understanding the origin of the Martian moon and its interaction with the space ...
Ballouz, Ronald-Louis   +4 more
core   +1 more source

JAXA curation for Bennu samples returned by the NASA's OSIRIS‐REx mission

open access: yesMeteoritics &Planetary Science, EarlyView.
Abstract NASA's OSIRIS‐REx mission successfully collected and returned ~121.6 g of bulk samples from the B‐type, near‐Earth asteroid (101955) Bennu to Earth in September 2023. Upon returning to Earth, the samples were transported to the NASA Johnson Space Center where most of the samples have been stored and processed.
Rui Tahara   +34 more
wiley   +1 more source

Catalytic/Protective Properties of Martian Minerals and Implications for Possible Origin of Life on Mars

open access: yesLife, 2018
Minerals might have played critical roles for the origin and evolution of possible life forms on Mars. The study of the interactions between the “building blocks of life„ and minerals relevant to Mars mineralogy under conditions mimicking the
Teresa Fornaro   +2 more
doaj   +1 more source

Martian Surface Paleotemperatures from Thermochronology of Meteorites

open access: yesScience, 2005
The temporal evolution of past martian surface temperatures is poorly known. We used thermochronology and published noble gas and petrographic data to constrain the temperature histories of the nakhlites and martian meteorite ALH84001. We found that the nakhlites have not been heated to more than 350°C since they formed.
Benjamin P. Weiss   +2 more
openaire   +5 more sources

Women in space: A review of known physiological adaptations and health perspectives

open access: yesExperimental 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

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