Results 251 to 260 of about 112,404 (309)

Large drainage systems produced half of Mars' ancient river sediment. [PDF]

Proc Natl Acad Sci U S A
Zaki AS, Goudge TA, Mohrig D.
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Strong nickel enrichment co-located with redox-organic interactions in Neretva Vallis, Mars. [PDF]

Nat Commun
Manelski HT, Wiens RC, Broz A, Hurowitz JA, Tice M, Clegg S, Dehouck E, Randazzo N, Connell SA, Forni O, VanBommel SJ, Schröder S, Mandon L, Gabriel TSJ, Bedford CC, Martinez RK, Cloutis EA, Cousin A, Cable ML.   +18 more
europepmc   +1 more source

3 months transit time to Mars for human missions using SpaceX Starship. [PDF]

Sci Rep
Kingdon J.
europepmc   +1 more source

Positioning, navigation, and timing on the Moon and Mars with galactic cosmic rays. [PDF]

iScience
Leone G, Tanaka HKM, Holma M, Krishnan S, Duffy AR, Enqvist T, Kuusiniemi P, Joutsenvaara J, Cerretto G, Cantoni E, Sellone M, Marteau J, Lo Presti D, Szűcs JG, Varga D.   +14 more
europepmc   +1 more source

Perchlorate brine formation from frost at the Viking 2 landing site. [PDF]

Commun Earth Environ
Chevrier VF.
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The rainout of formaldehyde favors a formose-based origin of life in shallow ponds

Scherf M, Constatinou T, Rimmer P, Woitke P, Ferus M, Lammer H, Cassone G, Weichbold F, Eminger P, Nemeckova K, Kacina J.   +10 more
europepmc   +1 more source

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Mars: Upper Atmosphere

Science, 1966
The thermal structure of the upper atmosphere of Mars has been theoretically investigated. The exospheric temperature, for a pure CO 2 model atmosphere, lies between 400° and 700°K. The origin of the Martian atmosphere is discussed in the light of these results.
S H, Gross, W E, McGovern, S I, Rasool
openaire   +2 more sources

Mars: An Evolving Atmosphere

Science, 1972
Photochemical reactions in the martian exosphere produce fast atoms of oxygen, carbon, and nitrogen and provide large escape fluxes of these elements. They appear to play a crucial role in the evolution of the martian atmosphere. The relative outgassing rates of H 2 O and CO 2 on Mars are ...
openaire   +2 more sources