Rosetta’s plasma shock takes a bow

Rosetta bow shock plasma

Comets can have very different size and shape bow shocks, plasma and magnetispheres. Rosetta’s scientists could not find a bow shock far away from the active asteroid 67P and finally found weird things much closer to comet 67P/Churyumov–Gerasimenko. Did they observe the formation of a cometary bow shock? Was it already there? Significant changes to …

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Black Hole plasmasphere?

blackhole plasmasphere plasma ball

Do black holes have a plasmasphere? Similar to planets, our Sun and other stars? And perhaps even asteroids and active asteroids (comets)? Researchers using two X-ray telescopes have identified a cosmic wind blowing outward from the supermassive black hole at the center of galaxy PDS 456. Astronomers have seen these winds before, but the authors …

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