Results 221 to 230 of about 18,454 (287)

Confined spaces in space: Cerebral implications of chronic elevations of inspired carbon dioxide and implications for long‐duration space travel

Experimental Physiology, Volume 111, Issue 9, Page 3968-3982, 1 September 2026.
Abstract Cerebrovascular regulation is critically dependent upon the arterial partial pressure of carbon dioxide (PaCO2${P_{{\mathrm{aC}}{{\mathrm{O}}_{\mathrm{2}}}}}$), owing to its effect on cerebral blood flow, tissue PCO2${P_{{\mathrm{C}}{{\mathrm{O}}_{\mathrm{2}}}}}$, tissue proton concentration, cerebral metabolism and cognitive and neuronal ...
Jay M. J. R. Carr, Philip N. Ainslie, Trevor Day   +2 more
wiley   +1 more source

Direct Detection of Hydrogen Reveals a New Macroscopic Crustal Water Reservoir on Early Mars

Geophysical Research Letters, Volume 53, Issue 16, 28 August 2026.
Abstract The next great leap in Martian exploration is the return of samples to Earth. Maximizing their scientific value requires non‐destructive analytical techniques for early three‐dimensional characterization. Neutron computed tomography (CT), highly sensitive to hydrogen, complements conventional X‐ray CT and enables the detection of hydrous ...
Estrid Buhl Naver, Katrine Wulff Nikolajsen, Martin Sæbye Carøe, Domenico Battaglia, Jens Frydenvang, Martin Bizzarro, Jakob Sauer Jørgensen, Kim Lefmann, Anders Kaestner, David Christian Mannes, Phil Cook, Henrik Birkedal, Thorbjørn Erik Køppen Christensen, Innokenty Kantor, Henning Friis Poulsen, Luise Theil Kuhn   +15 more
wiley   +1 more source

Mars' enigmatic interior -recent findings from InSight and open questions. [PDF]

Nat Commun
Fernando B, Charalambous C, Economon S.
europepmc   +1 more source

Corundum Discovered by SuperCam and the Perseverance Rover at Jezero Crater, Mars

Geophysical Research Letters, Volume 53, Issue 16, 28 August 2026.
Abstract Mars is primarily composed of mafic mineral assemblages and their alteration products, but small, scattered rocks strewn across the landscape offer clues to greater petrological diversity. While traversing the Jezero crater rim, the Perseverance rover encountered several plagioclase‐rich light‐toned float rocks.
A. M. Ollila, O. Beyssac, A. Fau, O. Forni, E. Clavé, P. Beck, C. C. Bedford, V. Payre, E. Dehouck, S. A. Connell, J. A. Manrique, P. Pilleri, O. Gasnault, G. M. Martinez, A. Udry, S. Bernard, P. Gasda, T. Acosta‐Maeda, R. B. Anderson, T. S. J. Gabriel, F. Calef, J. F. Bell III, J. Maki, S. Schröder, C. Quantin‐Nataf, J. R. Johnson, B. Chide, K. Rammelkamp, F. Poulet, C. Royer, M. Rock, N. L. Lanza, S. K. Sharma, G. Lopez‐Reyes, T. Fouchet, J. Comellas, A. Zastrow, E. Cloutis, R. C. Wiens, A. Cousin, S. Maurice, S. Clegg, P. Bernardi, T. Nelson   +43 more
wiley   +1 more source

Bayesian network-GIS-based livability assessment of rural settlements in the Upper Min River Basin, China. [PDF]

Sci Rep
Li J, Meng J, Wang Y, Mei H, Deng L, Guo C.   +5 more
europepmc   +1 more source

Projections of Earth's Hottest Surface Temperatures in CMIP6

Geophysical Research Letters, Volume 53, Issue 16, 28 August 2026.
Abstract Earth's hottest near‐surface air temperatures provide a benchmark for the upper tail of land heat extremes. Using CMIP6 simulations, we evaluate historical extremes against Berkeley Earth and project future changes under SSP2‐4.5 and abrupt‐4 × CO2 ${\text{CO}}_{2}$.
Anthony K. Wilson, Nicholas Lutsko, Daniela Faggiani Dias, Arthur J. Miller   +3 more
wiley   +1 more source

Microbial diversity in Pyrenean ice caves: extreme cryogenic environments as analogues for extraterrestrial habitability. [PDF]

FEMS Microbes
Muñoz-Hisado V, Puente-Sánchez F, Bartolomé M, Giménez R, Garcia-Lopez E, Moreno A, Cid C.   +6 more
europepmc   +1 more source

Mafic-ultramafic igneous rocks as a source of reactive phosphorus for the origin of life. [PDF]

Nat Commun
Baidya AS, Walton CR, Kalita J, Szilas K, Viccaro M, Savage PS, Allison S, Nisbet EG, Schönbächler M, Mikhail S, Stüeken EE.   +10 more
europepmc   +1 more source

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

Proc Natl Acad Sci U S A
Zaki AS, Goudge TA, Mohrig D.
europepmc   +1 more source

In Situ Analytical Chemistry Laboratory for the Exobiology Extant Life Surveyor. [PDF]

ACS Meas Sci Au
Drevinskas T, Cable ML, Stenner C, Gardner AS, Paton M, Malaska MJ, Cruz S, Rieber R, Etheredge R, Robinson M, Ono M, Mora MF, Bagshaw EA, Prior-Jones MR, Ferreira Santos MS, Noell AC, Willis PA.   +16 more
europepmc   +1 more source