The study looked at hypervelocity stars, ones that are screaming through space at speeds far higher than stars around them. Some of these stars are moving so rapidly that they have reached galactic escape velocity; the Milky Way’s gravity can’t hold them. In the coming eons, they’ll flee the galaxy entirely. And we have good reason to believe these runaway stars were launched by SMBHs—but how?
Ohhh, hint, not hit, I’m stupid, my wants got the best of me, I thought we observed an actual head-on collision, like at impossible odds (such a collision would be possible by hypervelocity stars since they could crash into things they don’t orbit, so a collision at ludicrous speeds, not just massive speeds via some converging (narrower) orbits).
Still ql to observe gravity immediately outside our galaxy, hope we get some data.