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    magnetic reconnection tagged posts

    First-ever views of elusive Energy Explosion

    November 17, 2018, Categories  Astronomy/Space

    Artist depiction of the MMS spacecraft that provided the first view of magnetic reconnection.
    Credit: NASA/GSFC

    Researchers at the University of New Hampshire have captured a difficult-to-view singular event involving “magnetic reconnection” – the process by which sparse particles and energy around Earth collide producing a quick but mighty explosion – in the Earth’s magnetotail, the magnetic environment that trails behind the planet.

    Magnetic reconnection has remained a bit of a mystery to scientists. They know it exists and have documented the effects that the energy explosions can have – sparking auroras and possibly wreaking havoc on power grids in the case of extremely large events – but they haven’t completely understood the details...

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    New Magnetic Process in Turbulent Space

    May 10, 2018, Categories  Biology/Biotechnology, Health/Medical

    In this visualization, as the supersonic solar wind (yellow haze) flows around the Earth's magnetic field (blue wavy lines), it forms a highly turbulent boundary layer called the 'magnetosheath' (yellow swirling area). A new research paper describes observations of small-scale magnetic reconnection within the magnetosheath, revealing important clues about heating in the sun's outer layers and elsewhere in the universe. Credit: NASA/GSFC

    In this visualization, as the supersonic solar wind (yellow haze) flows around the Earth’s magnetic field (blue wavy lines), it forms a highly turbulent boundary layer called the ‘magnetosheath’ (yellow swirling area). A new research paper describes observations of small-scale magnetic reconnection within the magnetosheath, revealing important clues about heating in the sun’s outer layers and elsewhere in the universe. Credit: NASA/GSFC

    Explorations in Earth’s space environment by NASA’s Magnetospheric Multiscale spacecraft have discovered a surprising new magnetic event in turbulent plasma. Magnetic reconnection is one of the most important processes in the space – filled with charged particles known as plasma – around Earth...

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    Stellar Magnetism: What’s behind the most Brilliant Lights in the Sky?

    January 31, 2018, Categories  Astronomy/Space

    Jan Egedal, professor of physics at UW-Madison who lead an exploration of magnetic reconnection, stands beside a chamber used for experiments in that exotic phenomenon. Magnetic reconnection seems to be involved in some of the most violent explosions in the universe; the recent study was the clearest view of the magnetic reconnection ever measured in space. The results "blew my mind," he says. Credit: David Tenenbaum/UW-Madison

    Jan Egedal, professor of physics at UW-Madison who lead an exploration of magnetic reconnection, stands beside a chamber used for experiments in that exotic phenomenon. Magnetic reconnection seems to be involved in some of the most violent explosions in the universe; the recent study was the clearest view of the magnetic reconnection ever measured in space. The results “blew my mind,” he says. Credit: David Tenenbaum/UW-Madison

    Space physicists at University of Wisconsin-Madison have just released unprecedented detail on a bizarre phenomenon that powers the northern lights, solar flares and coronal mass ejections, CMEs (the biggest explosions in our solar system)...

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    Turbulence in Astrophysical Plasmas

    December 4, 2017, Categories  Astronomy/Space

    Magnetic reconnection is a complicated phenomenon that Nuno Loureiro, an associate professor of nuclear science and engineering and of physics at MIT, has been studying in detail for more than a decade. To explain the process, he gives a well-studied example: “If you watch a video of a solar flare” as it arches outward and then collapses back onto the sun’s surface, “that’s magnetic reconnection in action. It’s something that happens on the surface of the sun that leads to explosive releases of energy.” Loureiro’s understanding of this process of magnetic reconnection has provided the basis for the new analysis that can now explain some aspects of turbulence in plasmas. Credit: NASA

    Magnetic reconnection is a complicated phenomenon that Nuno Loureiro, an associate professor of nuclear science and engineering and of physics at MIT, has been studying in detail for more than a decade. To explain the process, he gives a well-studied example: “If you watch a video of a solar flare” as it arches outward and then collapses back onto the sun’s surface, “that’s magnetic reconnection in action. It’s something that happens on the surface of the sun that leads to explosive releases of energy.” Loureiro’s understanding of this process of magnetic reconnection has provided the basis for the new analysis that can now explain some aspects of turbulence in plasmas. Credit: NASA

    Theoretical analysis uncovers new mechanisms in plasma turbulence...

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