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#stellarevolution — Public Fediverse posts

Live and recent posts from across the Fediverse tagged #stellarevolution, aggregated by home.social.

  1. Formation and evolution of the Solar System (Planetary science 🪐)

    There is evidence that the formation of the Solar System began about 4.6 billion years ago with the gravitational collapse of a small part of a giant molecular cloud. Most of the collapsing mass collected in the center, forming the Sun, ...

    en.wikipedia.org/wiki/Formatio

    #FormationAndEvolutionOfTheSolarSystem #Cosmogony #SolarSystem #PlanetaryScience #StellarAstronomy #StellarEvolution

  2. Glimpses of Coronal Rain

    Despite its incredible heat, our sun‘s corona is so faint compared to the rest of the star that we can rarely make it out except during a total solar eclipse. But a new adaptive optic technique has given us coronal images with unprecedented detail.

    These images come from the 1.6-meter Goode Solar Telescope at Big Bear Solar Observatory, and they required some 2,200 adjustments to the instrument’s mirror every second to counter atmospheric distortions that would otherwise blur the images. With the new technique, the team was able to sharpen their resolution from 1,000 kilometers all the way down to 63 kilometers, revealing heretofore unseen details of plasma from solar prominences dancing in the sun’s magnetic field and cooling plasma falling as coronal rain.

    The team hope to upgrade the 4-meter Daniel K. Inouye Solar Telescope with the technology next, which will enable even finer imagery. (Image credit: Schmidt et al./NJIT/NSO/AURA/NSF; research credit: D. Schmidt et al.; via Gizmodo)

    #flowVisualization #fluidDynamics #magneticField #magnetohydrodynamics #physics #plasma #science #solarDynamics #stellarEvolution