Results 61 to 70 of about 382,361 (336)

Thermal infrared spectroscopy of Europa and Callisto [PDF]

, 2000
The trailing hemispheres of Europa and Callisto were observed at 9–13 μm, and a spectrum of Europa with better spectral resolution and a better signal-to-noise ratio than was previously possible has been derived.
Brown, Michael E., Mills, Franklin P.
core   +1 more source

Power Subsystem Approach for the Europa Mission

E3S Web of Conferences, 2017
NASA is planning to launch a spacecraft on a mission to the Jovian moon Europa, in order to conduct a detailed reconnaissance and investigation of its habitability. The spacecraft would orbit Jupiter and perform a detailed science investigation of Europa,
Ulloa-Severino Antonio, Carr Gregory A., Clark Douglas J., Orellana Sonny M., Arellano Roxanne, Smart Marshall C., Bugga Ratnakumar V., Boca Andreea, Dawson Stephen F.   +8 more
doaj   +1 more source

Divergent Behavior of Hydrothermal Plumes in Fresh Versus Salty Icy Ocean Worlds

Journal of Geophysical Research: Planets, 2023
Water parcels close to their freezing point contract and become heavy on warming if they are sufficiently fresh (salinity less than 22g kg−1 for earth's ocean), but expand and become buoyant when salty (salinity greater than 22g kg−1).
S. Bire, Tushar Mittal, W. Kang, Ali Ramadhan, P. Tuckman, C. R. German, A. Thurnherr, John C. Marshall   +7 more
semanticscholar   +1 more source

Photocatalytic Water Splitting on the Lunar Surface: Prospects for In Situ Resource Utilization

Advanced Materials Interfaces, EarlyView.
Water has been found in craters on the moon nearby locations which are illuminated >80% of the time. Photocatalysis uses energy from sunlight to drive chemical reactions such as water splitting to produce oxygen and hydrogen. It is a scalable technology that requires lighter equipment and utilizes resources available on the moon. ABSTRACT The discovery
Ranjani Kalyan, Thomas D. Small, Gregory F. Metha, Mahmoud Adel Hamza, Thomas J. O'Dea, Yideng Shen, Cameron J. Shearer   +6 more
wiley   +1 more source

Unraveling Hydride‐Driven Multiphasic Reduction Toward Tunable Germanium Structures for Lithium‐Ion Batteries

Advanced Science, EarlyView.
The sodium hydride (NaH)‐mediated reduction of germanium dioxide yields distinct Ge structures depending on the amount of reductant, revealing the dual roles of NaH in the reduction pathways. The synthesized Ge under off‐stoichiometric conditions exhibits a porous morphology and reduced crystallinity, which effectively mitigates volume expansion during
Gijung Lee, Jieun Kang, Jin Yong Kwon, Woori Bae, Noh‐Moon Lee, Byeongho Park, Yujin Park, Changwan Sun, Jihee Yoon, Hyungmin Park, Bonjae Koo, Jin Woo Yi, Jaegeon Ryu   +12 more
wiley   +1 more source

Deciphering the Origin of the Regular Satellites of Gaseous Giants - Iapetus: the Rosetta Ice-Moon [PDF]

, 2009
Here we show that Iapetus can serve to discriminate between satellite formation models. Its accretion history can be understood in terms of a two-component gaseous subnebula, with a relatively dense inner region, and an extended tail out to the location ...
Atreya, Ayliffe, Bai, Baker, Bate, Beckwith, Bell, Benz, Birnstiel, Bodenheimer, Bottke, Brauer, Bronshten, Brown, Buie, Buratti, Canup, Castillo-Rogez, Castillo-Rogez, Chabot, Charnoz, Charnoz, Charnoz, Chyba, Currie, Cuzzi, Cuzzi, Cuzzi, Davis, Dodson-Robinson, Dohnanyi, Dominik, Dominik, Dullemond, Durham, Ellsworth, Estrada, Ghosh, Hayashi, Hobbs, Housen, Hubickyj, Ignacio Mosqueira, Jewitt, Johansen, Johnson, Kenyon, Koponen, Kretke, Lin, Lunine, Lyra, McKinnon, Merk, Morbidelli, Morbidelli, Morfill, Moses, Mosqueira, Mosqueira, Mosqueira, Owen, Paul R. Estrada, Person, Podolak, Pollack, Pollack, Pollack, Prialnik, Prialnik, Prinn, Rafikov, Ryan, Scott, Sebastien Charnoz, Smoluchowski, Sohl, Stern, Stevenson, Svetsov, Tamayo, Tremaine, Turner, Ward, Weidenschilling, Weidenschilling, Wetherill, Wong, Youdin, Young, Zahnle, Zahnle   +91 more
core   +2 more sources

Beyond Imperfect Match: Silicon/Graphite Hybrid Anodes for High‐Energy–Density Lithium‐Ion Batteries

Advanced Energy Materials, EarlyView.
Silicon/graphite (Si/Gr) hybrid anodes are limited by Si's large volume change and mismatch with Gr. This review offers mechanistic insights into imperfectly matched Si/Gr hybrid anodes, elucidating heterogeneous lithiation behavior and interfacial failure pathways, and thereby informing the design of durable, high‐energy–density lithium‐ion batteries.
Jing Li, Karol Viviana Mejía‐Centeno, Malik Dilshad Khan, Guifang Zeng, Lijie Ci, Andreu Cabot, Qing Sun   +6 more
wiley   +1 more source

Developing a Laser Induced Liquid Beam Ion Desorption Spectral Database as Reference for Spaceborne Mass Spectrometers

Earth and Space Science, 2022
Spaceborne impact ionization mass spectrometers, such as the Cosmic Dust Analyzer on board the past Cassini spacecraft or the SUrface Dust Analyzer being built for NASA's upcoming Europa Clipper mission, are of crucial importance for the exploration of ...
Fabian Klenner, Muhammad Umair, Sebastian H. G. Walter, Nozair Khawaja, Jon Hillier, Lenz Nölle, Zenghui Zou, Maryse Napoleoni, Arnaud Sanderink, Wilhelm Zuschneid, Bernd Abel, Frank Postberg   +11 more
doaj   +1 more source

Deep Impact Mission to Tempel 1 Favours New Explosive Cosmogony of Comets [PDF]

, 2006
The assumption that short-period (SP) comets are fragments of massive icy envelopes of Ganymede-like bodies saturated by products of ice electrolysis that underwent global explosions provides a plausible explanation of all known manifestations of comets,
A'Hearn M. F., A. A. Schmidt, Anderson C. E., Baum F. A., Bazilevski A. T., Byk S. Sh., Decroly J. C., Drobyshevski E. M., E. A. Kumzerova, E. M. Drobyshevski, Godunov S. K., Kruchynenko V. G., Lisse C. M., Melosh H. J., Petrenko V. F., Roddy D. J., Sekanina Z., Stanyukovich K. P., Vsekhsvyatski S. K., Zel'dovich Y. B.   +19 more
core   +2 more sources

Crater Observing Bioinspired Rolling Articulator (COBRA)

Advanced Intelligent Systems, EarlyView.
Crater Observing Bio‐inspired Rolling Articulator (COBRA) is a modular, snake‐inspired robot that addresses the mobility challenges of extraterrestrial exploration sites such as Shackleton Crater. Incorporating snake‐like gaits and tumbling locomotion, COBRA navigates both uneven surfaces and steep crater walls.
Adarsh Salagame, Henry Noyes, Eric Sihite, Arash Kalantari, Alireza Ramezani   +4 more
wiley   +1 more source