3 ms·
This is pretty badly written. Something looks like a black hole but doesn't have an event horizon? Isn't a black hole nothing but an event horizon to an outward
by friend_and_foe 3y ago
This is pretty badly written. Something looks like a black hole but doesn't have an event horizon? Isn't a black hole nothing but an event horizon to an outward observer? How does it look like a black hole if it doesn't bend light with gravity?
You could hold it in your hand "if you survive the encounter"? So you can't hold it in your hand? *What would happen to you if you touched it?"
- GoblinSlayer 3y agoCollapsar asymptotically approaches state of black hole as inverse exponent of time. Feel free to detect such small difference.
- 100721 3y agoI find a lot of posts from phys.org to be highly editorialized, with ambiguous and sensational headlines. It is a low quality source, imo
- eigenform 3y agoI think implication is that there's a spectrum of related phenomena (and that "black holes" with an event horizon are an extreme case)
- elashri 3y agoThe Topological solitons would appear exactly like predicted black holes from a distance, with shadows, light rings, and gravitational wave signatures. It is not about the event horizon. It just telling you we would see them as black holes if we look to them from some distance. Remember that cannot observe the event horizon directly, the famous gravitational waves discovery in 2015 is an example of indirect black holes observation The other important difference is that they could form without mass which is not the case with black holes. So I am not sure that I would agree with you.
- zelphirkalt 3y agoSo if they form without mass, why would they bend light like black holes? If they don't bend light, then it seems to me that they would not really appear as black holes.