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Lee Duna@lemmy.nz to Astronomy@mander.xyzEnglish · 2 years ago

Spiral galaxies like the Milky Way are surprisingly rare. Astronomers may finally know why.

www.livescience.com

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Spiral galaxies like the Milky Way are surprisingly rare. Astronomers may finally know why.

www.livescience.com

Lee Duna@lemmy.nz to Astronomy@mander.xyzEnglish · 2 years ago
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The Supergalactic Plane we are located in doesn't have many spiral galaxies like the Milky Way. Astronomers think they finally know why galaxies like ours are so rare.
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  • Optional@lemmy.world
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    2 years ago

    A computer simulation says spiral galaxies on a plane bang into each other and result in more elliptical galaxies. Ours hasn’t banged into anyone else yet, that the computer simulation knows about.

    • bdx2023@lemmynsfw.com
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      2 years ago

      … So that infamous impending collision with Andromeda will take our spirals away?!

      (Impending in a cosmological sense, so several million years at least IIRC)

      • Trabic@lemm.ee
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        2 years ago

        Thousands of millions of years I think, and continuing for at least hundreds of millions before the bouncing stops

        https://media.giphy.com/media/v1.Y2lkPTc5MGI3NjExbzcxZ2VudzQ0djQwZTB4MXdzbzdqdXQ4aDVkdWxkMnJ3amJndmlrbCZlcD12MV9pbnRlcm5hbF9naWZfYnlfaWQmY3Q9Zw/rytLWOErAX1F6/giphy.gif

    • Kata1yst@kbin.social
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      2 years ago

      Actually our galaxy has had at least 1 other collision according to our current understanding.

      https://www.wired.com/story/this-galactic-collision-shaped-the-history-of-the-milky-way/

      But our spiral likely formed after.

  • rah@feddit.uk
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    2 years ago

    Downvoted for click-bait title.

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