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NASA’s Fermi Spots a Weird Pulse of High-Energy Radiation Racing Toward Earth
When the core of massive star collapses, it can form a black hole. Some of the surrounding matter escapes in the form of powerful jets that rush outward at almost…
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NASA’s Fermi Spots a Weird Pulse of High-Energy Radiation Racing Toward Earth
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Discovery of 10 Faces of Plasma: New Insights in Fusion and Plasma Science
Physicists Hong Qin, left, and Yichen Fu, with rendering of 10 phases of plasma from their Nature Communications paper. Credit: Photos and collage by Elle Starkman/Office of Communications Scientists have…
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Butterflies Cross the Vast Sahara Desert in Longest-Known Insect Migration
A Painted Lady butterfly in Morocco. Credit: Orio Massana Weather conditions shown to have big influence on migration numbers. A species of butterfly found in Sub-Saharan Africa is able to…
America
Exceptionally Preserved Fossil Sheds Light on the Evolution of How Dinosaurs Breathed
Life reconstruction of Heterodontosaurus vocalizing on a cool Jurassic morning. Credit: Viktor Radermacher Using an exceptionally preserved fossil from South Africa, a particle accelerator, and high-powered x-rays, an international team…
America
Lung Cancer Resistance: The Key Is Glucose Metabolism
Histological staining of a lung adenocarcinoma, which is made of tumor cells as well as cells of the immune microenvironment including tumor-associated neutrophils. Credit: Caroline Contat (EPFL) Cancers are not…
America
New Index Ranks Rainforests’ Vulnerability to Climate and Human Impacts
A rainforest in Malaysia. Credit: Wikimedia Common A new index shows that the world’s rainforests are responding differently to threats like a warming climate and deforestation. Scientists from NASA’s Jet…
America
How a Sudden Stratospheric Warming Event Over Antarctica Affected the Northern Hemisphere
Ionospheric anomalies observed on Sept. 15, 2019, over North America. Anomalies are shown for TEC (total electron content) and expressed as percentage compared to the average values for this season.…
America
How Organisms Have Evolved To Address Imbalances in Sex Chromosomes
The species of turtle involved in the study is Apalone spinifera, a species of freshwater turtles native to North America. But the researchers say their findings shed light on the…
America
Researchers Investigate Newly Introduced Butterfly That Could Become Widespread in Canada
Male and female Polyommatus icarus mating. Credit: Stephanie A. Rivest This summer, if you see a butterfly with wings that are blue on top with orange spots underneath, you may…
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Dynamic Control of THz Wavefronts by Rotating Layers of Cascaded Metasurfaces
A metadevice for dynamically controlling THz wavefronts by rotating layers of cascaded metasurfaces. Credit: Shanghai University Cascaded metasurfaces for dynamic control of THz wavefronts Electromagnetic (EM) waves in the terahertz…