3 ms·
Galaxies are big, including our own. Unless the rogue black hole is traveling near light speed, you will get at least tens of thousands of years of advance war
by yongjik 2y ago
Galaxies are big, including our own. Unless the rogue black hole is traveling near light speed, you will get at least tens of thousands of years of advance warning. (What you could do with that warning is a different matter, though...)
- andrewflnr 2y agoIf you were lucky enough to see the ejection happen, yes. But if one was already on the way?
- chowells 2y agoYou would absolutely notice the gravitational distortions a very long time in advance. That's a lot of mass. You can't miss the way it's distorting space for a very long way around it.
- khafra 2y agoThere are lots of easily visible stars on the other side of any supermassive black hole that's nearer to you than other galaxies are. When those stars start lensing in ways visible to the naked eye, you're going to know something weird is going on.
- Iwan-Zotow 2y agoYou'll see bent light and similar effects.