3 ms·
Black holes were discovered in theory before any there was any evidence too.
by fahadkhan 10y ago
Black holes were discovered in theory before any there was any evidence too.
- XorNot 10y agoAlthough interestingly we're not necessarily sure they're exactly what we think they are - you can come up with objects which would give the same observations we have but be quite different : https://en.m.wikipedia.org/wiki/Gravastar https://en.m.wikipedia.org/wiki/Gravastar