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Giant Swirling Waves at Edge of Jupiter’s Magnetosphere

Graph of KHI at Jupiter showing swirling waves
UCAR/Zhang, et.al. An SwRI-led team identified intermittent evidence of Kelvin-Helmholtz instabilities, giant swirling waves, at the boundary between Jupiter’s magnetosphere and the solar wind that fills interplanetary space, modeled here by University Corporation for Atmospheric Research scientists in a 2017 GRL paper.

Waves produced by Kelvin-Helmholtz instabilities transfer energy in the solar system. A team led by Southwest Research Institute (SwRI) and The University of Texas at San Antonio (UTSA) has found that NASA’s Juno spacecraft orbiting Jupiter frequently encounters giant swirling waves at the boundary between the solar wind and Jupiter’s magnetosphere...

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New Study could help Unlock ‘Game-Changing’ Batteries for Electric Vehicles and Aviation

An artistic image of a glowing cylindrical battery lying on top of an electronic circuit board. Image credit: Shutterstock.

Significantly improved electric vehicle (EV) batteries could be a step closer thanks to a new study led by University of Oxford researchers, published today in Nature. Using advanced imaging techniques, this revealed mechanisms which cause lithium metal solid-state batteries (Li-SSBs) to fail. If these can be overcome, solid-state batteries using lithium metal anodes could deliver a step-change improvement in EV battery range, safety and performance, and help advance electrically powered aviation.

One of the co-lead authors of the study Dominic Melvin, a PhD student in the University of Oxford’s Department of Materials, said: ‘Progressing solid-state batteries with lithium metal anodes is one of the most important challenges facing the advancement of battery technologies...

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Experimental ‘Decoy’ Protects Against SARS-CoV-2 Infection

An experimental “decoy” has provided long-term protection from infection by the pandemic virus in mice, a new study finds. Led by researchers at NYU Grossman School of Medicine, the work is based on how the virus that causes COVID-19, SARS-CoV-2, uses its spike protein to attach to a protein on the surface of the cells that line human lungs. Once attached to this cell surface protein, called angiotensin converting enzyme 2 (ACE2), the virus spike pulls the cell close, enabling the virus to enter the cell and hijack its machinery to make viral copies.

Earlier in the pandemic, pharmaceutical companies designed monoclonal antibodies to glom onto the spike and neutralize the virus. Treatment of patients soon after infection was successful in preventing hospitalization and death...

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This Star might be Orbiting a Strange ‘Boson Star’

This star might be orbiting a strange
Illustration of a merger of two boson stars. Credit: Nicolás Sanchis-Gual and Rocío García Souto

A team of astronomers has claimed that observations of a sun-like star orbiting a small black hole might actually be the indication of something far more exotic—the existence of a boson star, a star composed entirely of dark matter.

The Gaia survey, led by the European Space Agency, provided detailed maps of more than a billion stars in the Milky Way galaxy. While almost all of those stars behaved as expected, there were some surprises. For example, one star in particular was seen orbiting a dark companion.

The star itself was fairly typical, weighing in at 0.93 solar masses and with roughly the same chemical abundance as our own sun...

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