Results 1 to 10 of about 2,545,225 (204)

A South Pole-Aitken impact origin of the lunar compositional asymmetry. [PDF]

Sci Adv, 2022
The formation of the largest and most ancient lunar impact basin, South Pole–Aitken (SPA), was a defining event in the Moon’s evolution. Using numerical simulations, we show that widespread mantle heating from the SPA impact can catalyze the formation of
Jones MJ, Evans AJ, Johnson BC, Weller MB, Andrews-Hanna JC, Tikoo SM, Keane JT.   +6 more
europepmc   +2 more sources

Evidence of a 4.33 billion year age for the Moon's South Pole-Aitken basin. [PDF]

Nat Astron
The Moon’s farside South Pole–Aitken (SPA) basin is the largest and oldest visible impact basin in the inner Solar System. Determining the timing of this catastrophic event is key to understanding the onset of the lunar basin-forming epoch, with ...
Joy KH, Wang N, Snape JF, Goodwin A, Pernet-Fisher JF, Whitehouse MJ, Liu Y, Lin YT, Darling JR, Tar P, Tartèse R.   +10 more
europepmc   +2 more sources

Continuous-Flow Analysis of δ17O, δ18O, and δD of H2O on an Ice Core from the South Pole

Frontiers in Earth Science, 2021
The δD and δ18O values of water are key measurements in polar ice-core research, owing to their strong and well-understood relationship with local temperature.
Eric J. Steig, Tyler R. Jones, Andrew J. Schauer, Emma C. Kahle, Valerie A. Morris, Bruce H. Vaughn, Lindsey Davidge, James W.C. White   +7 more
doaj   +2 more sources

The SP19 chronology for the South Pole Ice Core – Part 2: gas chronology, Δage, and smoothing of atmospheric records [PDF]

Climate of the Past, 2020
A new ice core drilled at the South Pole provides a 54 000-year paleoenvironmental record including the composition of the past atmosphere. This paper describes the SP19 chronology for the South Pole atmospheric gas record and complements a ...
J. A. Epifanio, E. J. Brook, C. Buizert, J. S. Edwards, T. A. Sowers, E. C. Kahle, J. P. Severinghaus, E. J. Steig, D. A. Winski, D. A. Winski, E. C. Osterberg, T. J. Fudge, M. Aydin, E. Hood, M. Kalk, K. J. Kreutz, K. J. Kreutz, D. G. Ferris, J. A. Kennedy   +18 more
doaj   +2 more sources

Anomalously high geothermal flux near the South Pole. [PDF]

Sci Rep, 2018
Melting at the base of the Antarctic Ice Sheet influences ice dynamics and our ability to recover ancient climatic records from deep ice cores. Basal melt rates are affected by geothermal flux, one of the least constrained properties of the Antarctic ...
Jordan TA, Martin C, Ferraccioli F, Matsuoka K, Corr H, Forsberg R, Olesen A, Siegert M.   +7 more
europepmc   +2 more sources

Selection of Lunar South Pole Landing Site Based on Constructing and Analyzing Fuzzy Cognitive Maps

Remote Sensing, 2022
The Permanently Shadowed Regions (PSRs) of the lunar south pole have never been directly sampled. To explore and discover lunar resources, the Chinese lunar south pole exploration mission is scheduled to land in direct sunlight near the PSR, where ...
Yutong Jia, Lei Liu, Xingchen Wang, Ningbo Guo, Gang Wan   +4 more
doaj   +3 more sources

A Physical and Spectroscopic Survey of the Lunar South Pole with the Galileo Telescope of the Asiago Astrophysical Observatory

Aerospace
In recent years, interest in the Moon has grown exponentially, thanks mainly to space programs with strong international cooperation, such as the NASA Artemis program.
Nicolò Trabacchin, Paolo Ochner, Giacomo Colombatti   +2 more
doaj   +3 more sources

SPT-SLIM: A Line Intensity Mapping Pathfinder for the South Pole Telescope [PDF]

Journal of Low Temperature Physics, 2021
The South Pole Telescope Summertime Line Intensity Mapper (SPT-SLIM) is a pathfinder experiment that will demonstrate the use of on-chip filter-bank spectrometers for mm-wave line intensity mapping.
K. Karkare, A. Anderson, P. Barry, B. Benson, J. Carlstrom, T. Cecil, C. Chang, M. Dobbs, M. Hollister, G. Keating, D. Marrone, J. McMahon, J. Montgomery, Z. Pan, G. Robson, M. Rouble, E. Shirokoff, G. Smecher   +17 more
semanticscholar   +1 more source

Evidence for a Stratified Upper Mantle Preserved Within the South Pole‐Aitken Basin

Journal of Geophysical Research - Planets, 2021
The evolution and compositional structure of the lunar mantle has been extensively modeled but insufficiently constrained by observations. Here, we identify and characterize mantle materials exposed by the Moon's largest impact basin to better understand
D. Moriarty, Ryan Watkins, S. Valencia, J. Kendall, A. Evans, N. Dygert, N. Petro   +6 more
semanticscholar   +1 more source

Multiple subglacial water bodies below the south pole of Mars unveiled by new MARSIS data [PDF]

Nature Astronomy, 2020
The detection of liquid water by the Mars Advanced Radar for Subsurface and Ionosphere Sounding (MARSIS) at the base of the south polar layered deposits in Ultimi Scopuli has reinvigorated the debate about the origin and stability of liquid water under ...
S. Lauro, E. Pettinelli, G. Caprarelli, L. Guallini, A. Rossi, E. Mattei, B. Cosciotti, A. Cicchetti, F. Soldovieri, M. Cartacci, F. Di Paolo, R. Noschese, R. Orosei   +12 more
semanticscholar   +1 more source