Results 101 to 110 of about 25,282 (206)

Mars: The Viking discoveries [PDF]

, 1977
An overview of the Viking Mars probe is presented. The Viking spacecraft is described and a brief history of the earlier observations and exploration of Mars is provided.
French, B. M.
core   +2 more sources

Dust tides and rapid meridional motions in the Martian atmosphere during major dust storms. [PDF]

Nat Commun, 2020
Wu Z, Li T, Zhang X, Li J, Cui J.
europepmc   +1 more source

Stable carbon isotope evolution of formaldehyde on early Mars

Scientific Reports
Organic matter in the Martian sediments may provide a key to understanding the prebiotic chemistry and habitability of early Mars. The Curiosity rover has measured highly variable and 13C-depleted carbon isotopic values in early Martian organic matter ...
Shungo Koyama, Tatsuya Yoshida, Yoshihiro Furukawa, Naoki Terada, Yuichiro Ueno, Yuki Nakamura, Arihiro Kamada, Takeshi Kuroda, Ann Carine Vandaele   +8 more
doaj   +1 more source

An Investigation into the Suitability of Sulfate-Reducing Bacteria as Models for Martian Forward Contamination [PDF]

, 2018
The NASA Planetary Protection policy requires interplanetary space missions do not compromise the target body for a current or future scientific investigation and do not pose an unacceptable risk to Earth, including biologic materials.
Silver, Maxwell M. W.
core   +2 more sources

Fractionated Martian Atmosphere – the Case of the Nakhlites, Revisited with Experiments [PDF]

, 2018
We report on fractionated noble gases in the Martian meterorites - a literature survey and new ...
Bart, G. D., Bridges, J. C., Bullock, M. A., Chaves, C., Crowther, S. A., Filiberto, J., Gilmour, J. D., Herrmann, S., Hicks, L. J., Kelley, S. P., Miller, M. A., Mohapatra, R., Moore, J. M., Ott, U., Schwenzer, S. P., Seidel, R., Smith, H., Swindle, T. D., Treiman, A. H.   +18 more
core  

Dual-Wavelength Interferometric Detection Technology for Wind and Temperature Fields in the Martian Middle and Upper Atmosphere Based on LCTF

Remote Sensing
A dual-wavelength spaceborne Martian polarized wind imaging Michelson interferometer based on liquid crystal tunable filters (LCTF-MPWIMI) has been proposed for the remote sensing detection of dynamic parameters such as wind speed and temperature in the ...
Yanqiang Wang, Biyun Zhang, Chunmin Zhang, Shiping Guo, Tingyu Yan, Yifan He, William Ward   +6 more
doaj   +1 more source

Mariner 4 and the atmosphere of Mars [PDF]

Interpretation of data on Martian atmosphere obtained from Mariner
Johnson, F. S.
core   +1 more source

Of Martian atmospheres, oceans, and fossils

Icarus, 1990
Abstract Based on the absence of extensive cratering on the northern Martian plains, it is suggested that these plains were the sites of ancient oceans, 2 to 3.5 Gyr ago, with a calculatable water depth of (≥) 0.7 km. Also it appears possible to interpret the crater density counts for Chryse and the highlands as implying that Mars had a fairly dense ...
openaire   +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, D'Alessandro, Maurizio, Galletta, Giuseppe   +2 more
core  

Aeolian abrasion of rocks as a mechanism to produce methane in the Martian atmosphere. [PDF]

Sci Rep, 2019
Safi E, Telling J, Parnell J, Chojnacki M, Patel MR, Realff J, Blamey NJF, Payler S, Cockell CS, Davies L, Boothroyd IM, Worrall F, Wadham JL.   +12 more
europepmc   +1 more source