Hitesh G. Changela, Elias Chatzitheodoridis, Andre Antunes, David Beaty, Kristian Bouw, John C. Bridges, Klara Anna Capova, Charles S. Cockell, Catharine A. Con… 展开作者
Hitesh G. Changela, Elias Chatzitheodoridis, Andre Antunes, David Beaty, Kristian Bouw, John C. Bridges, Klara Anna Capova, Charles S. Cockell, Catharine A. Conley, Ekaterina Dadachova, Tiffany D. Dallas Stefaan de Mey, Chuanfei Dong Alex Ellery, Martin Ferus, Bernard Foing, Xiaohui Fu, Kazuhisa Fujita, Yangtin Lin, Sohan Jheeta, Leon J. Hicks, Sen Hu, Akos Kereszturi, Alexandros Krassakis, Yang Liu, Juergen Oberst, Joe Michalski, P. M. Ranjith, Teresa Rinaldi, David Rothery, Hector A. Stavrakakis Laura Selbmann, Rishitosh K. Sinha, Alian Wang, Ken Williford, Zoltan Vaci, Jorge L. Vago, Michael Waltemathe, John E. Hallsworth
Mars exploration motivates the search for extraterrestrial life, the development of space technologies, and the design of human missions and habitations. Here we seek new insights and pose unresolved questions relating to the natural history of Mars, habitability, robotic and human exploration, planetary protection, and the impacts on human society. Key observations and findings include:(1)high escape rates of early Mars' atmosphere, including loss of water, impact present-day habitability;(2)putative fossils on Mars will likely be ambiguous biomarkers for life;(3)microbial contamination resulting from human habitation is unavoidable;(4)based on Mars' current planetary protection category, robotic payload(s) should characterize the local martian environment for any life-forms prior to human habitation. Some of the outstanding questions are:(1)which interpretation of the hemispheric dichotomy of the planet is correct;(2)to what degree did deep-penetrating faults transport subsurface liquids to Mars' surface;(3)in what abundance are carbonates formed by atmospheric processes;(4)what properties of martian meteorites could be used to constrain their source locations;(5)the origin(s) of organic macromolecules;(6)was/is Mars inhabited;(7)how can missions designed to uncover microbial activity in the subsurface eliminate potential false positives caused by microbial contaminants from Earth;(8)how can we ensure that humans and microbes form a stable and benign biosphere;(9)should humans relate to putative extraterrestrial life from a biocentric viewpoint (preservation of all biology), or anthropocentric viewpoint of expanding habitation of space? Studies of Mars' evolution can shed light on the habitability of extrasolar planets. In addition, Mars exploration can drive future policy developments and confirm (or put into question) the feasibility and/or extent of human habitability of space.
Analyze Mass Spectrometry data with Artificial Intelligence to assist the understanding of past habitability of Mars and provide insights for future missions
Unearthing InSights into Mars: Unsupervised Source Separation with Limited Data
Rice University（莱斯大学）；École Normale Supérieure（巴黎高等师范学院）；PSL University（巴黎文理研究大学）；Sorbonne Université（索邦大学）；Université Paris Cité（巴黎西岱大学）；Institut de Physique du Globe de Paris（巴黎地球物理研究所）
Estimations of the seismic pressure noise on Mars determined from Large Eddy Simulations and demonstration of pressure decorrelation techniques for the InSight mission
The InSight HP$^3$ mole on Mars: Lessons learned from attempts to penetrate to depth in the Martian soil
NASA InSight任务有效载荷包括热流和物理特性包HP $^3$，用于测量表面热流。该装置的设计是使用一个小型穿透器-绰号"鼹鼠"-在5米深的土壤中安装一串温度传感器。鼹鼠本身配备有传感器，以测量当它前进到深度时的热导率。热流将从温度梯度和热导率的乘积来计算。为避免每年表面温度变化引起的扰动，将在3米至5米的深度进行测量。设计的鼹鼠可以穿透类似于石英砂的无粘性土壤，这有望为火星砂提供良好的模拟材料。沙子会为被埋的鼹鼠船体提供摩擦力，以平衡驱动鼹鼠前进的鼹鼠锤机制的剩余反冲力。不幸的是，鼹鼠没有穿透超过40厘米的鼹鼠长度。未能穿透得更深主要是由于几十厘米厚的粘性硬壳未能提供所需的摩擦力。虽然重锤机构中的抑制质量和弹簧吸收了大部分后坐力，但可用的质量不允许系统消除后坐力。鼹鼠穿透到40厘米深，得益于支撑结构中弹簧提供的摩擦力，鼹鼠从支撑结构中展开。此外，还发现火星土壤提供了意想不到的穿透阻力，这将促使设计一种更强大的鼹鼠。它的结论是，更多的质量将允许设计一个更强大的系统，很少或没有反冲，更多的能量的鼹鼠锤机制和更大规模的支持结构。
Using physics-based simulation towards eliminating empiricism in extraterrestrial terramechanics applications
School of Naval Architecture, Ocean and Civil Engineering, Shanghai Jiao Tong University（上海交通大学船舶海洋与建筑工程学院）；University of Wisconsin-Madison（威斯康星大学麦迪逊分校）；Ames Research Center, NASA（美国国家航空航天局艾姆斯研究中心）；NASA, Glenn Research Center（美国国家航空航天局格伦研究中心）；ProtoInnovations, LLC（ProtoInnovations有限责任公司）；Massachusetts Institute of Technology（麻省理工学院）
Multi-scale clustering and source separation of InSight mission seismic data
Department of Computer Science, University of Central Florida（中央佛罗里达大学计算机科学系）；Rice University（里士满大学）；Département d’Informatique, École Normale Supérieure（高等师范学院信息学院）；Department of Computer Science, Brown University（布朗大学计算机科学系）；Laboratoire de Physique de l’Ecole normale supérieure, ENS, Université PSL, CNRS, Sorbonne Université, Université Paris-Cité（高等师范学院物理实验室，ENS，大学巴黎-勒阿弗尔，CNRS，索邦大学，巴黎-勒阿弗尔大学）；LUX, Observatoire de Paris, Université PSL, Sorbonne Université, CNRS（LUX，巴黎天文台，大学巴黎-勒阿弗尔，索邦大学，CNRS）；Université Paris Cité, Institut de Physique du Globe de Paris, CNRS（巴黎-勒阿弗尔大学，巴黎地球物理研究所，CNRS）；Department of Computational Applied Mathematics and Operations Research, Rice University（里士满大学计算应用数学与运营管理系）
