Post History
Barring the presence of an accretion disk surrounding these black holes - unlikely, in the absence of a compansion object - our best bet is likely to exploit gravitational lensing, the bending of l...
Answer
#1: Attribution notice removed
by
System
·
2020-06-01T14:13:41Z (almost 4 years ago)
Source: https://worldbuilding.stackexchange.com/a/5266 License name: CC BY-SA 3.0 License URL: https://creativecommons.org/licenses/by-sa/3.0/