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http://dx.doi.org/10.1038/s41590-020-0605-9 | DOI Listing |
Science
December 2024
Centre National d'Etudes Spatiales, Toulouse, France.
The global ocean covers 71% of Earth's surface, yet the seafloor is poorly charted compared with land, the Moon, Mars, and Venus. Traditional ocean mapping uses ship-based soundings and nadir satellite radar altimetry-one limited in spatial coverage and the other in spatial resolution. The joint NASA-CNES (Centre National d'Etudes Spatiales) Surface Water and Ocean Topography (SWOT) mission uses phase-coherent, wide-swath radar altimetry to measure ocean surface heights at high precision.
View Article and Find Full Text PDFMicroorganisms
September 2024
Department of Plant Pathology, University of Florida, Gainesville, FL 32611, USA.
A Planetary Atmospheric Chamber (PAC) was used to create simulations of interplanetary conditions to test the spore survival of three spp. exposed to interacting conditions of vacuum (VAC), simulated solar heating (HEAT), and simulated solar ultraviolet irradiation (UV). Synergism was observed among the experimental factors for all three spp.
View Article and Find Full Text PDFSports Med
October 2024
La Trobe Sport and Exercise Medicine Research Centre, La Trobe University, Melbourne, VIC, Australia.
Tendons play fundamental roles in the execution of human movement and therefore understanding tendon function, health and disease is important for everyday living and sports performance. The acute mechanical behavioural and physiological responses to short-term loading of tendons, as well as more chronic morphological and mechanical adaptations to longer term loading, differ between sexes. This has led some researchers to speculate that there may be a sex-specific injury risk in tendons.
View Article and Find Full Text PDFVenus, lacking an intrinsic global dipole magnetic field, serves as a textbook example of an induced magnetosphere, formed by interplanetary magnetic fields (IMF) enveloping the planet. Yet, various aspects of its magnetospheric dynamics and planetary ion outflows are complex and not well understood. Here we analyze plasma and magnetic field data acquired during the fourth Venus flyby of the Parker Solar Probe (PSP) mission and show evidence for closed topology in the nightside and downstream portion of the Venus magnetosphere (i.
View Article and Find Full Text PDFPhys Rev Lett
April 2024
Instituto de Física-Universidade Federal do Rio de Janeiro (UFRJ), Rio de Janeiro, RJ, 21941-972, Brazil.
In CO_{2}-rich atmospheres that are always exposed to ionizing radiation (e.g., Venus and Mars), every fragmentation process can significantly impact the inventory of moieties present in these environments.
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