Two Giant Galaxies Spin in a Cosmic Waltz ⚡ экспресс
Original: "Tango of Titans: Centaurus A and M83 as a Local Group Analog"
Two giant galaxies have begun a cosmic waltz, foreshadowing their merger.
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The giant galaxies Centaurus A and M83 have stumbled into a gravitational trap: they’re flying toward each other, even though we once thought they were drifting apart. This cosmic waltz has revealed their combined mass—6.4 trillion Suns—and shows us what likely awaits when the Milky Way meets Andromeda.
🎯 Vera Rubin proved that galaxies spin so fast they would fly apart without an invisible scaffold of dark matter holding them together.
🎬 A slow cosmic collision is a classic sci-fi theme—most famously in Carl Sagan’s novel ‘Contact’.