Results 41 to 50 of about 7,041 (240)

Epigenomics in an extraterrestrial environment: organ-specific alteration of DNA methylation and gene expression elicited by spaceflight in Arabidopsis thaliana

BMC Genomics, 2019
Background Plants adapted to diverse environments on Earth throughout their evolutionary history, and developed mechanisms to thrive in a variety of terrestrial habitats.
Mingqi Zhou, Natasha J. Sng, Collin E. LeFrois, Anna-Lisa Paul, Robert J. Ferl   +4 more
doaj   +1 more source

Autonomous Detection of Particles and Tracks in Optical Images

Earth and Space Science, 2020
When optical navigation images acquired by the OSIRIS‐REx (Origins, Spectral Interpretation, Resource Identification, and Security‐Regolith Explorer) mission revealed the periodic ejection of particles from asteroid (101955) Bennu, it became a mission ...
Andrew J. Liounis, Jeffrey L. Small, Jason C. Swenson, Joshua R. Lyzhoft, Benjamin W. Ashman, Kenneth M. Getzandanner, Michael C. Moreau, Coralie D. Adam, Jason M. Leonard, Derek S. Nelson, John Y. Pelgrift, Brent J. Bos, Steven R. Chesley, Carl W. Hergenrother, Dante S. Lauretta   +14 more
doaj   +1 more source

Rocket Science: The Effect of Spaceflight on Germination Physiology, Ageing, and Transcriptome of Eruca sativa Seeds

Life, 2020
In the ‘Rocket Science’ project, storage of Eruca sativa (salad rocket) seeds for six months on board the International Space Station resulted in delayed seedling establishment. Here we investigated the physiological and molecular mechanisms underpinning
Jake O. Chandler, Fabian B. Haas, Safina Khan, Laura Bowden, Michael Ignatz, Eugenia M. A. Enfissi, Frances Gawthrop, Alistair Griffiths, Paul D. Fraser, Stefan A. Rensing, Gerhard Leubner-Metzger   +10 more
doaj   +1 more source

From Flybys to Sample Return: A Review of Space Probes and Robotic Sampling Technologies for Small Bodies

Journal of Field Robotics, EarlyView.
ABSTRACT As a crucial puzzle piece of deep space exploration, exploring small bodies can provide significant scientific insights and valuable mineral resources. Unlike missions to the Moon and Mars, small‐body missions pose distinct technical challenges, including communication delays, weak gravity, and uncertain environments. This paper reviews a full
Xin Zhang, Hao Zhou, Dalin Zhou, Zhaojie Ju   +3 more
wiley   +1 more source

Future research directions to identify risks and mitigation strategies for neurostructural, ocular, and behavioral changes induced by human spaceflight: A NASA-ESA expert group consensus report

Frontiers in Neural Circuits, 2022
A team of experts on the effects of the spaceflight environment on the brain and eye (SANS: Spaceflight-Associated Neuro-ocular Syndrome) was convened by NASA and ESA to (1) review spaceflight-associated structural and functional changes of the human ...
Rachael D. Seidler, Claudia Stern, Mathias Basner, Alexander C. Stahn, Floris L. Wuyts, Floris L. Wuyts, Peter zu Eulenburg   +6 more
doaj   +1 more source

Embedded Interactions and Selective Disclosure: Network Effects on Conversations aboard Skylab

Symbolic Interaction, EarlyView.
How do absent others influence our interactions? We argue in this paper that interactions are embedded within networks formed by chains of specific relationships between known third parties. The anticipation of future interactions with external others conditions our interpretation of the current situation and affects our behavior in the interaction. We
Michael Schultz, Leslie DeChurch, Noshir Contractor   +2 more
wiley   +1 more source

Preparation and properties of polyacrylonitrile pre-oxidized fiber/silicone rubber ablation composites

Cailiao gongcheng
Polyacrylonitrile pre-oxidized fiber（PANOF）is an emerging flame retardant material with low cost and high performance，showing a promising application potential as thermal protection materials in the aerospace field.Pretreated PANOF（t-PANOF）was obtained ...
YANG Rui, LIU Leichun, SHI Sheng, XU Haijian, CHEN Wenqi, CHEN Yi   +5 more
doaj   +1 more source

Model‐Based Systems Engineering in Space Applications: A Comprehensive Literature Review

Systems Engineering, EarlyView.
ABSTRACT The growing complexity of space engineering is driving the demand to embrace the adoption of Model‐Based Systems Engineering (MBSE). Although the MBSE is well‐practiced in the space industry, the level of effort and need required to obtain the benefits of MBSE vastly differ across enterprises; this disparity presents a significant challenge to
Rehobot Bekele Buruso, Sara Himmiche, Taiwo Tejumola, Yeshirun Alemayehu, Bertrand Rose   +4 more
wiley   +1 more source

Studying Tech Diplomacy—Introduction to the Special Issue on Tech Diplomacy

Global Policy, EarlyView.
ABSTRACT This article serves as an introduction to the special issue on tech diplomacy, exploring its emergence and evolution as a distinct approach to global affairs in the era of the Fourth Industrial Revolution. Originating with Denmark's 2017 “TechPlomacy” initiative, tech diplomacy has gained global momentum, with over two dozen countries adopting
Corneliu Bjola, Markus Kornprobst
wiley   +1 more source

Rendezvous in Space: Tech Diplomacy and the Commercial Space Era—A Study of Rendezvous and Docking Technologies and Space Exploration Co‐Operation Since the Cold War

Global Policy, EarlyView.
ABSTRACT On‐orbit rendezvous and docking constitute one of the most technically challenging activities in the history of space activities. As space endeavours mature to crewed missions, space rendezous and docking technologies (RDT) emerge as an area of technological innovation critical to advances in future crewed space exploration.
Nikita Chiu, Markus Kornprobst
wiley   +1 more source