2026
conference-paper
OpenAlex
Steven R. Oleson, Elizabeth R. Turnbull, Steven L. McCarty, Zachary Zoloty et autres
A ‘quick’ Enceladus sample return mission concept was developed based on the scientist recommendations at the recent ‘Accelerating Space Science with Nuclear Technology Workshop’. The Nuclear Electric Propulsion spacecraft assumed a follow-on 40 kWe nuclear reactor using the demonstrated 40 kWe Fission …
us
(code pays fourni par la source)
2026
conference-paper
OpenAlex
Geoffrey A. Landis, Steven R. Oleson, Allison C. Fox, Stephen Polly et autres
This work presents a design for a smallsat designed as a ride-along payload with the Uranus Orbiter and Probe (UOP) mission, with the mission of demonstrating the feasibility of operating a smallsat in environment of Uranus, demonstrating a new energy conversion system, …
us
(code pays fourni par la source)
Accès ouvert
2025
article
OpenAlex
Brandi L. Carrier, Elliot Sefton‐Nash, Heather Valeah Graham, C. D. K. Herd et autres
International audience
us, nl, ca, gb, be, no, fr, it, ch, de, se
(code pays fourni par la source)
2025
other
OpenAlex
David J. Des Marais, Tristan A. Caro, Rajani D. Dhingra, Allison C. Fox et autres
The abundance and distribution of stable isotopes of an element in a substance can provide insights regarding the source, synthesis, and environmental history of that substance. Because isotopic discrimination during chemical reactions can be unique to specific chemical pathways or environmental conditions, …
us, gb
(code pays fourni par la source)
Accès ouvert
2024
article
OpenAlex
Eva L. Scheller, Tanja Bosak, Francis M. Mccubbin, Kenneth H. Williford et autres
A major objective of the Mars 2020 mission is to sample rocks in Jezero crater that may preserve organic matter for later return to Earth. Using an ultraviolet Raman and luminescence spectrometer, the Perseverance rover detected luminescence signals with maximal intensities at …
us, se, ca, it, fr, dk, gb
(code pays fourni par la source)
Accès ouvert
2023
article
OpenAlex
Allison C. Fox, Jason D. Boettger, E. L. Berger, Aaron S. Burton
The salt-induced peptide formation (SIPF) reaction is a prebiotically plausible mechanism for the spontaneous polymerization of amino acids into peptides on early Earth. Experimental investigations of the SIPF reaction have found that in certain conditions, the l enantiomer is more reactive than …
us
(code pays fourni par la source)
Accès ouvert
2023
article
OpenAlex
Sunanda Sharma, Ryan D. Roppel, Ashley Elizabeth Murphy, Luther W. Beegle et autres
Abstract The presence and distribution of preserved organic matter on the surface of Mars can provide key information about the Martian carbon cycle and the potential of the planet to host life throughout its history. Several types of organic molecules have been …
us, gb, se, it
(code pays fourni par la source)
Accès ouvert
2023
article
OpenAlex
Allison C. Fox, Ryan Scott Jakubek, J. L. Eigenbrode
Abstract The search for potential molecular biosignatures on Mars is complicated by its harsh radiation environment that can alter or destroy the primary molecular features diagnostic of an organic compound's origins. In this work, mixtures of Mars‐relevant minerals and organic material representing …
us
(code pays fourni par la source)
Accès ouvert
2023
dataset
OpenAlex
Allison C. Fox
These data are presented in, "The role of the CuCl active complex in the stereoselectivity of the salt-induced peptide formation reaction: insights from density functional theory calculations" by Fox et al. Model results are given as .log files and follow the naming …
us
(code pays fourni par la source)
2022
article
OpenAlex
Eva L. Scheller, Joseph Razzell Hollis, Emily Cardarelli, Andrew Steele et autres
The Perseverance rover landed in Jezero crater, Mars, in February 2021. We used the Scanning Habitable Environments with Raman and Luminescence for Organics and Chemicals (SHERLOC) instrument to perform deep-ultraviolet Raman and fluorescence spectroscopy of three rocks within the crater. We identify …
us, gb, fr, ca, es, it, se
(code pays fourni par la source)
Accès ouvert
2022
dataset
OpenAlex
Allison C. Fox
These data are presented in "Changes in the Spectroscopic Signatures of Irradiated Organic-Mineral Mixtures: Implications for Molecular Biosignature Detection on Mars" by Fox et al. File names use the shorthand: FS - fused silica, A1 - synthetic analog, OM - organic mix, …
us
(code pays fourni par la source)
Accès ouvert
2022
article
OpenAlex
Marc D. Fries, Carina Lee, Rohit Bhartia, Joseph Razzell Hollis et autres
Abstract The Scanning Habitable Environments with Raman and Luminescence for Organics and Chemicals (SHERLOC) is a robotic arm-mounted instrument onboard NASA’s Perseverance rover. SHERLOC combines imaging via two cameras with both Raman and fluorescence spectroscopy to investigate geological materials at the rover’s …
us, gb, se
(code pays fourni par la source)