planetary science

ARLINGTON, Va. — A consortium established last year to develop a rating to measure how well satellites comply with space sustainability guidelines expects to have an initial version of its rating system ready by late this year or early next year. The World Economic Forum (WEF) announced in May 2019 it selected a group that
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Google’s chief executive called Monday for a balanced approach to regulating artificial intelligence, telling a European audience that the technology brings benefits but also “negative consequences.” Sundar Pichai’s comments come as lawmakers and governments seriously consider putting limits on how artificial intelligence is used. “There is no question in my mind that artificial intelligence needs
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In order to determine the past magnetic field direction and intensity, the researchers dated and analyzed zircon crystals collected from sites in Australia. The zircons are about two-tenths of a millimeter and contain even smaller magnetic particles that lock in the magnetization of the earth at the time the zircons were formed. Here, a zircon
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The cathepsins in the study were cysteine cathepsins and are best known for their work in the lysosome, a cell organelle, where they break down unneeded proteins into amino acids. Credit: National Institutes of Health Like motley bandits, certain enzymes implicated in cancer and other diseases also annihilate each other. A new study reveals details
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Satellite image of the Gibraltar Arc. Credit: NASA A new study made by researchers at the Institute of Earth Sciences Jaume Almera of the Spanish National Research Council (ICTJA-CSIC) has been able to describe the effects of the lithospheric structure on the topography of the Strait of Gibraltar area. This new research shows the deep
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Research shows why fireflies blink in unison even though each individual insect is different. Credit: Toan Phan Northwestern University researchers have added a new dimension to the importance of diversity. For the first time, physicists have experimentally demonstrated that certain systems with interacting entities can synchronize only if the entities within the system are different
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Credit: CC0 Public Domain Dutch judges feel that multi-judge panels can lead to more carefully considered rulings. Although research by Reyer Baas shows that they may be right, the added value of collective decision-making is far from guaranteed. Baas will receive his Ph.D. from Radboud University on January 24th. The Dutch judicial system is currently
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Credit: ESA/Royal Observatory of Belgium The changing activity of our sun as seen by ESA’s Proba-2 satellite in 2019. The satellite is continuously monitoring the sun—one image was selected to represent each day of the year in this montage of 365 suns. The images were taken by the satellite’s SWAP camera, which works at extreme
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UV light shines on a pane of glass, coated with several layers of two-dimensional semiconductor nanoplatelets, which emits blue light. Credit: ETH Zurich / Jakub Jagielski ETH scientists have further developed QLED technology for screens. They have produced light sources that for the first time emit high-intensity light in only one direction. This reduces scattering
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Claudia Gollner and her laser system. Credit: Vienna University of Technology Terahertz radiation is used for security checks at airports, for medical examinations and also for quality checks in industry. However, radiation in the terahertz range is extremely difficult to generate. Scientists at TU Wien have now succeeded in developing a terahertz radiation source that
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Germán J. de Valcárcel Gonzalvo. Credit: Asociacion RUVID A five-country research team coordinated by Germán J. de Valcárcel Gonzalvo, Professor of Optics at the University of Valencia, has developed a new theory —the coherent master equation— that describes the behavior of pulsed lasers based on fast materials and highlights its effects of quantum coherence (the
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