Results 121 to 130 of about 10,345 (309)

The futuristic manifolds of REM sleep

Journal of Sleep Research, Volume 34, Issue 2, April 2025.
Summary Since one of its first descriptions 70 years ago, rapid eye movement sleep has continually inspired and excited new generations of sleep researchers. Despite significant advancements in understanding its neurocircuitry, underlying mechanisms and microstates, many questions regarding its function, especially beyond the early neurodevelopment ...
Liborio Parrino, Ivana Rosenzweig
wiley   +1 more source

Apollo 14 visibility tests: Visibility of lunar surface features and lunar landing

, 1972
An in-flight visibility test conducted on the Apollo 14 mission is discussed. The need for obtaining experimental data on lunar feature visibility arose from visibility problems associated with various aspects of the Apollo missions; and especially from ...
Ziedman, K.
core  

Space Math: Lunar Math [PDF]

, 2008
This booklet includes 17 problems relating to the Moon and its exploration. Images from NASA are analyzed to determine image scales and the physical sizes of various crates and features.
Sten Odenwald
core  

Noble gases and nitrogen in material from asteroid Bennu

Meteoritics &Planetary Science, EarlyView.
Abstract We report the elemental and isotopic abundances of all stable noble gases (helium, neon, argon, krypton, and xenon) in eight particles from asteroid Bennu returned by NASA's OSIRIS‐REx mission. We also report nitrogen abundances and isotopic ratios that were analyzed alongside neon and argon in four additional Bennu particles.
B. Marty, L. Zimmermann, E. Füri, D. V. Bekaert, J. J. Barnes, A. N. Nguyen, H. C. Connolly, D. S. Lauretta   +7 more
wiley   +1 more source

Evolution of the Lunar Magnetic Field

Space: Science & Technology
The Moon currently lacks a global magnetic field; however, both paleomagnetic analyses of lunar rock samples and orbital magnetic measurements indicate that it once possessed a core dynamo.
Hao Luo, Huapei Wang, Shuhui Cai, Huafeng Qin, Yufeng Lin, Yingzhuo Jia, Lin Tian, Yasong Ge, Bincheng Hong, Xuelong Jiang, Aimin Du   +10 more
doaj   +1 more source

Association of Lunar and Planetary Observers

The Association of Lunar and Planetary Observer's web pages, an organization of amateur astronomers interested in observing solar system objects. The site features sections on youth programs, solar, lunar, eclipse, remote planets, comets, meteors ...

core  

Araguainha Dome, Brazil: A polygonal impact structure due to a complex pre‐impact regional structural framework

Meteoritics &Planetary Science, EarlyView.
Abstract We investigated the structural framework of the north–northwestern Paraná Basin in Brazil to test whether the pre‐impact structures in this region may have had any influence on the first‐order formation and morphostructure of the Araguainha impact structure (AIS).
Renato B. Bernardes, Wolf U. Reimold, Roger L. Gibson, Julia B. Curto Ma, Adolfo B. Silva, Natalia Hauser   +5 more
wiley   +1 more source

LunaRoo: Designing a hopping lunar science payload

, 2016
We describe a hopping science payload solution designed to exploit the Moon's lower gravity to leap up to 20m above the surface. The entire solar-powered robot is compact enough to fit within a 10cm cube, whilst providing unique observation and mission ...
Thierry Peynot, Dunbabin, Matthew, Eich, Markus, Donald G. Dansereau, Raymond Russell, Roberts, Jonathan, Matthew Dunbabin, Peynot, Thierry, Jonathan Roberts, Dansereau, Donald G., William Chamberlain, Markus Eich, Chamberlain, William, Leitner, Jürgen, Jurgen Leitner, Russell, Raymond, Niko Sunderhauf, Sünderhauf, Niko   +17 more
core   +1 more source

Bret/BRAT

Critical Quarterly, EarlyView.
Nicholas Smart
wiley   +1 more source

Geochemical investigation of impactites from the Boltysh impact structure and possible relationship to early Danian sediments from the Umbria–Marche Basin, Italy

Meteoritics &Planetary Science, EarlyView.
Abstract Within the Danian Scaglia Rossa Formation appears a regionally correlatable horizon cutting across multiple sections and outcrops within the Umbria–Marche Basin of NE Italy, where it is intercalated with uniform pelagic carbonate successions. This horizon is called “ALE layer” and has tentatively been interpreted as a fine‐grained volcanic ash.
Toni Schulz, Sophia Wernitznig, Christian Koeberl, Bérengère Mougel, Alessandro Montanari, Frédéric Moynier   +5 more
wiley   +1 more source