Spiral galaxies like the Milky Way are surprisingly rare. Astronomers may finally know why.
https://www.livescience.com/space/astronomy/spiral-galaxies-like-the-milky-way-are-surprisingly-rare-astronomers-may-finally-know-why
21 points · 5 comments · view on lemmy.world
5 Comments
homesweethomeMrL@lemmy.world · 13 pts · 2y
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 · 6 pts · 2y
... 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 · 4 pts · 2y
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 · 2 pts · 2y
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 · 7 pts · 2y
Downvoted for click-bait title.