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  • Six of one, half a dozen of the other A couple of earlier postings have discussed the stellar phenomenon known as "coronal mass ejections" (CMEs). CMEs are the result of the sudden release of magnetic energy in the outer ...
    Posted Mar 16, 2020, 7:22 PM by Jeremy Drake
  • Fugitive Plasma Caught Speeding on Yellow Giant Star Coronal mass ejections on the Sun are the result of the release of stored magnetic energy that flings out up to 100 billion tonnes of hot plasma at speeds of ...
    Posted Mar 16, 2020, 7:01 PM by Jeremy Drake
  • Breezing through the Space Environment of Barnard’s Star b The discovery of a planet orbiting the nearby - at 6 light years - red dwarf called Barnard's Star was a major step in our growing understanding that planetary systems around ...
    Posted Mar 5, 2020, 6:18 AM by Jeremy Drake
  • Proton Beams of Death The most numerous stars in the Universe are those of the lowest masses - the M dwarfs. They are so dim compared with stars like our own Sun that their so ...
    Posted Mar 4, 2020, 7:42 PM by Jeremy Drake
  • The Optics of Superflares Stellar flares are explosive events in the outer atmospheres of stars powered by the sudden release of stored magnetic energy generated in the interior. The analogy of suddenly releasing a ...
    Posted Mar 4, 2020, 8:21 AM by Jeremy Drake
  • Mind the Gap One of the most challenging puzzles in stellar evolution that emerged in the 1970s and early 1980s was the "cataclysmic variable period gap". Cataclysmic variables (CVs) are interacting binary stars ...
    Posted Mar 3, 2020, 7:15 PM by Jeremy Drake
  • The Radio Refraction Mind-bender Refraction is a physical phenomenon that spans the entire electromagnetic spectrum.  It is typically seen in optical terms as the bending of light as it passes between materials with different ...
    Posted Mar 2, 2020, 2:15 PM by Jeremy Drake
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