How do we know what happens at the event horizon of a black hole?
A)Astronomers have sent spacecraft through the event horizon of a nearby black hole.
B)Astronomers have detected X- rays from accretion disks around black holes.
C)Astronomers have analyzed the light from matter within the event horizon of many black holes.
D)Physicists have created miniature black holes in the lab.
E)We don't know for sure; we only know what to expect based on the predictions of general relativity.

Question

Quizplus · Accepted Answer

We don't know for sure what happens at the event horizon of a black hole. While astronomers have detected X-rays from accretion disks around black holes and analyzed the light from matter within the event horizon of many black holes, we cannot directly observe or send spacecraft through the event horizon itself. Therefore, our understanding of what occurs at the event horizon is based on the predictions of general relativity.

How Do We Know What Happens at the Event Horizon