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Discussion in 'General Education' started by vickilyn, Aug 18, 2015.

  1. vickilyn

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    Dec 4, 2019

    https://svs.gsfc.nasa.gov/vis/a010000/a013400/a013484/SwitchbackCu_1080.mp4
    https://svs.gsfc.nasa.gov/vis/a010000/a013400/a013484/wispr_merged_L3_rel_enc02.mp4
    https://svs.gsfc.nasa.gov/vis/a010000/a013400/a013484/Sun_Dust_Disk_FInal_4k.mp4
    https://svs.gsfc.nasa.gov/vis/a010000/a013400/a013484/Particle_Jet_Final.mp4
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    Image #10: One of the greatest threats from the Sun — to astronauts and the satellites that provide GPS maps, cell phone service, and internet access — are high-energy particles that erupt from the Sun in bursts. Top: On Nov. 17, 2018 — the 321st day of that year, as seen on the bottom axis — the ISʘIS instrument aboard NASA's Parker Solar Probe observed a burst of high-energy protons, each with more than 1 million electron-volts of energy. The warmer colors (yellow, orange, red) represent an increase in the number of these high-energy particles hitting the ISʘIS sensors. (Time in days is given on the horizontal axis, and particle energy on the vertical axis.) Bottom: An artist’s representation of one of these energetic particle events.

    Credit: NASA/Princeton

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    Image #12: The top panel shows a schematic of a Coronal Mass Ejection (CME), during which a burst of material with as much mass as Lake Michigan is ejected from the Sun. These can pose a threat to astronauts and space satellites, but ISʘIS scientists discovered that tiny energetic particles rush ahead of the ejected mass, providing advance warning of the incoming threat.

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    Image #14: On Epi-Lo, 80 tiny telescopes are looking in 80 different directions, and one of those was punctured by a dust grain when Parker Solar Probe was at its closest approach to the sun. The purple arrow shows the approximate arrival direction of the dust grain, and the bottom panel shows where during the second orbit collision occurred.

    Credit: NASA/Princeton

    https://svs.gsfc.nasa.gov/vis/a010000/a013200/a013282/Particles_to_Earth_mk_II.webm
    https://svs.gsfc.nasa.gov/vis/a010000/a012800/a012867/12867WhyWontItMeltV8_appletv.m4v
     
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