Results 211 to 220 of about 13,652 (300)
Abstract Several national space agencies and commercial entities are currently targeting the Moon's south polar region for human and robotic exploration. Of particular interest are materials excavated and ejected from the Moon's largest and oldest impact structure, the South Pole‐Aitken Basin (SPA), as these ancient materials are a window into the ...
D. P. Moriarty III +2 more
wiley +1 more source
On the coincidence between the close passage of HD7977 and the Pliocene-Pleistocene transition. [PDF]
Cao Z, Loeb A, MacLeod M.
europepmc +1 more source
Impact Plasma Amplification of the Ancient Mercury Magnetic Field
Abstract Spacecraft measurements of Mercury indicate that it has a core dynamo with a surface field of 200–800 nT. These data also indicate that the northern hemisphere crust contains remanent magnetization likely produced by an ancient magnetic field. The inferred magnetization intensity is consistent with a wide range of paleofield strengths (0.2–50 ...
Isaac S. Narrett +6 more
wiley +1 more source
Proximal ejecta of the putative parent impact crater for Australasian tektites at the Bolaven Plateau. [PDF]
Mizera J, Strunga V.
europepmc +1 more source
Abstract Dendritic valley networks on Mars have been cited as evidence for a warm and wet Noachian Mars, permitting rainfall precipitation and surface runoff. However, the climatic conditions required to sustain rainfall on early Mars remain debated.
K. R. Karpenko +7 more
wiley +1 more source
Complex Crater Collapse: A Comparison of the Block and Melosh Acoustic Fluidization Models of Transient Target Weakening. [PDF]
Hay HCFC +4 more
europepmc +1 more source
The OMEGA/Mars Express Dust Storm Catalog
Abstract This paper describes the OMEGA Dust Storm Catalogue (ODSC), built over almost 4 Martian Years (end of MY 26 to mid MY 30d) from OMEGA/Mars Express hyperspectral observations. A storm detection method has been developed based on a pixel clustering algorithm applied to the OMEGA dust optical depth retrievals made at 0.9 μ ${\upmu }$m.
Y. Leseigneur +6 more
wiley +1 more source
Critical velocity criterion of explosive charges initiated by fragment impact considering impact angle and charge radius. [PDF]
Cui H, Wu J, Xu Y, Song P, Guo R.
europepmc +1 more source
Abstract Mars Reconnaissance Orbiter's Compact Reconnaissance Imaging Spectrometer for Mars (CRISM), Context Imager (CTX), and High Resolution Imaging Science Experiment observations were analyzed for a 25‐m‐wide impact crater and associated ejecta deposits located in the dust‐covered Arabia Terra region.
R. E. Arvidson +13 more
wiley +1 more source
Volcanic processes within the Petavius crater, nearside of the Moon. [PDF]
Satyakumar AV, Patel S, Patel DD.
europepmc +1 more source

