just recently read something about dark matter or dark energy halos around galaxies as the current still best hypothesis as the reason for this wobbling and amplitudes of the galaxy disc
the Milky Way is not only flying at 600 km/s, but also “flapping its wings” like a butterfly🦋 https://video.nostr.build/7d2922990753e2b8b912167cb2430572232060b19f363cf1aeab06e92d3d2153.mp4
just recently read something about dark matter or dark energy halos around galaxies as the current still best hypothesis as the reason for this wobbling and amplitudes of the galaxy disc
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