Zobrazeno 1 - 10
of 54
pro vyhledávání: '"Keyron Hickman‐Lewis"'
Autor:
Frédéric Foucher, Guillaume Guimbretière, Nicolas Bost, Keyron Hickman-Lewis, Aurélie Courtois, Lydie Luengo, Etienne Marceau, Maïtine Bergounioux, Frances Westall
Publikováno v:
Inventions, Vol 4, Iss 4, p 67 (2019)
We propose an innovative method based on photography and image processing of interdisciplinary relevance, permitting the uncomplicated and inexpensive evaluation of material properties. This method—CaliPhoto—consists of using a dedicated colour p
Externí odkaz:
https://doaj.org/article/45dbb736637a45a8b500a08019f12d57
Autor:
Keyron Hickman-Lewis, Pascale Gautret, Laurent Arbaret, Stéphanie Sorieul, Rutger De Wit, Frédéric Foucher, Barbara Cavalazzi, Frances Westall
Publikováno v:
Geosciences, Vol 9, Iss 8, p 359 (2019)
Morphologically diverse organo-sedimentary structures (including microbial mats and stromatolites) provide a palaeobiological record through more than three billion years of Earth history. Since understanding much of the Archaean fossil record is con
Externí odkaz:
https://doaj.org/article/f648fd61012841c3b57a4aee10f8b565
Publikováno v:
Life, Vol 7, Iss 4, p 40 (2017)
In this study, we attempt to illustrate the competition that constitutes the main challenge of astrobiology, namely the competition between the probability of extraterrestrial life and its detectability. To illustrate this fact, we propose a simple s
Externí odkaz:
https://doaj.org/article/a231ced23fc649f7b8bd54bc0aaccb3c
Autor:
Eva L. Scheller, Joseph Razzell Hollis, Emily L. Cardarelli, Andrew Steele, Luther W. Beegle, Rohit Bhartia, Pamela Conrad, Kyle Uckert, Sunanda Sharma, Bethany L. Ehlmann, William J. Abbey, Sanford A. Asher, Kathleen C. Benison, Eve L. Berger, Olivier Beyssac, Benjamin L. Bleefeld, Tanja Bosak, Adrian J. Brown, Aaron S. Burton, Sergei V. Bykov, Ed Cloutis, Alberto G. Fairén, Lauren DeFlores, Kenneth A. Farley, Deidra M. Fey, Teresa Fornaro, Allison C. Fox, Marc Fries, Keyron Hickman-Lewis, William F. Hug, Joshua E. Huggett, Samara Imbeah, Ryan S. Jakubek, Linda C. Kah, Peter Kelemen, Megan R. Kennedy, Tanya Kizovski, Carina Lee, Yang Liu, Lucia Mandon, Francis M. McCubbin, Kelsey R. Moore, Brian E. Nixon, Jorge I. Núñez, Carolina Rodriguez Sanchez-Vahamonde, Ryan D. Roppel, Mitchell Schulte, Mark A. Sephton, Shiv K. Sharma, Sandra Siljeström, Svetlana Shkolyar, David L. Shuster, Justin I. Simon, Rebecca J. Smith, Kathryn M. Stack, Kim Steadman, Benjamin P. Weiss, Alyssa Werynski, Amy J. Williams, Roger C. Wiens, Kenneth H. Williford, Kathrine Winchell, Brittan Wogsland, Anastasia Yanchilina, Rachel Yingling, Maria-Paz Zorzano
Publikováno v:
Science. 378:1105-1110
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 spectro
Autor:
Vivian Z. Sun, Kevin P. Hand, Kathryn M. Stack, Ken A. Farley, Justin I. Simon, Claire Newman, Sunanda Sharma, Yang Liu, Roger C. Wiens, Amy J. Williams, Nicholas Tosca, Sanna Alwmark, Olivier Beyssac, Adrian Brown, Fred Calef, Emily L. Cardarelli, Elise Clavé, Barbara Cohen, Andrea Corpolongo, Andrew D. Czaja, Tyler Del Sesto, Alberto Fairen, Teresa Fornaro, Thierry Fouchet, Brad Garczynski, Sanjeev Gupta, Chris D. K. Herd, Keyron Hickman‐Lewis, Briony Horgan, Jeffrey Johnson, Kjartan Kinch, Tanya Kizovski, Rachel Kronyak, Robert Lange, Lucia Mandon, Sarah Milkovich, Robert Moeller, Jorge Núñez, Gerhard Paar, Guy Pyrzak, Cathy Quantin‐Nataf, David L. Shuster, Sandra Siljestrom, Andrew Steele, Michael Tice, Olivier Toupet, Arya Udry, Alicia Vaughan, Brittan Wogsland
The Mars 2020 Perseverance rover landed in Jezero crater on 18 February 2021. After a 100‐sol period of commissioning and the Ingenuity Helicopter technology demonstration, Perseverance began its first science campaign to explore the enigmatic Jeze
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::1fc0b924e71d66fa8228c5939d4791cb
https://www.repository.cam.ac.uk/handle/1810/353426
https://www.repository.cam.ac.uk/handle/1810/353426
Autor:
Frances Westall, Jean Bréhéret, Keyron Hickman-Lewis, Kathleen Campbell, Diego Giudo, Frédéric Foucher, Barbara Cavalazzi
The 3.33 Ga Josefsdal Chert in the Barberton Greenstone Belt, South Africa, records a sequence of sediments deposited under shifting energy conditions in a nearshore paleoenvironment (1, 2). At the base, volcanoclastic sediments were deposited under
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::e8219807ae5d0faa7c6698970fa79317
https://doi.org/10.5194/egusphere-egu23-12866
https://doi.org/10.5194/egusphere-egu23-12866
Autor:
Andrea Corpolongo, Ryan S. Jakubek, Aaron S. Burton, Adrian J. Brown, Anastasia Yanchilina, Andrew D. Czaja, Andrew Steele, Brittan V. Wogsland, Carina Lee, David Flannery, Desirée Baker, Edward A. Cloutis, Emily Cardarelli, Eva L. Scheller, Eve L. Berger, Francis M. McCubbin, Joseph Razzell Hollis, Keyron Hickman‐Lewis, Kim Steadman, Kyle Uckert, Lauren DeFlores, Linda Kah, Luther W. Beegle, Marc Fries, Michelle Minitti, Nikole C. Haney, Pamela Conrad, Richard V. Morris, Rohit Bhartia, Ryan Roppel, Sandra Siljeström, Sanford A. Asher, Sergei V. Bykov, Sunanda Sharma, Svetlana Shkolyar, Teresa Fornaro, William Abbey
Publikováno v:
Journal of Geophysical Research: Planets. 128
Autor:
Frédéric Foucher, Barbara Cavalazzi, Jorge L. Vago, Laura Clodoré, Keyron Hickman-Lewis, Frances Westall
Publikováno v:
International Journal of Astrobiology
International Journal of Astrobiology, 2021, 20 (6), pp.377-393. ⟨10.1017/S1473550421000264⟩
International Journal of Astrobiology, 2021, 20 (6), pp.377-393. ⟨10.1017/S1473550421000264⟩
In this work, we address the difficulty of reliably identifying traces of life on Mars. Several independent lines of evidence are required to build a compelling body of proof. In particular, we underline the importance of correctly interpreting the g
Autor:
Keyron Hickman-Lewis
Methods, Figures S1–S16, and Table S1.
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::f959ad0afb687c64e6d4493b08a9b16e
https://doi.org/10.1130/geol.s.21200434.v2
https://doi.org/10.1130/geol.s.21200434.v2
Autor:
Frédéric Foucher, Nicolas Bost, Guillaume Guimbretière, Keyron Hickman-Lewis, Aurélie Courtois, Lydie Luengo, Etienne Marceau, Philippe Martin, Frances Westall
Introduction In order to study unaltered rocks, Mars rovers are equipped with abrasive and/or drilling devices. NASA’s Spirit and Opportunity rovers were equipped with a Rock Abrasion Tool to remove the first mm of altered material [1]. NASA’s Cu
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::a7cc2eba29aa91b09abba9da10709239
https://doi.org/10.5194/epsc2022-138
https://doi.org/10.5194/epsc2022-138