Edit - Physics Stack Exchange

You are not logged in. Your edit will be placed in a queue until it is peer reviewed.

We welcome edits that make the post easier to understand and more valuable for readers. Because community members review edits, please try to make the post substantially better than how you found it, for example, by fixing grammar or adding additional resources and hyperlinks.

$\begingroup$ Great answer. Thank you! $\endgroup$
– Charles Averill
Commented Sep 8, 2021 at 0:47
$\begingroup$ Just checking...that's really "all timelike directions", correct? Or do all spacelike directions get eaten up too if you're close enough to the singularity? $\endgroup$
– Adam Herbst
Commented Sep 8, 2021 at 2:33
1

$\begingroup$ Spatial directions for a light beam, which would allow you to enumerate all possible lightlike paths with that event as an origin. Outside the horizon, some spatial directions intersect the singularity. Inside the horizon they all do. $\endgroup$
– BowlOfRed
Commented Sep 8, 2021 at 4:11
1

$\begingroup$ What I'd like to know is, what if the photon start exactly at the event horizon? $\endgroup$
– j4nd3r53n
Commented Sep 8, 2021 at 9:07
1

$\begingroup$ @j4nd3r53n : A photon is not a point, so what does "exactly at" mean? $\endgroup$
– Eric Towers
Commented Sep 8, 2021 at 17:33

| Show 4 more comments

Correct minor typos or mistakes
Clarify meaning without changing it
Add related resources or links
Always respect the author’s intent
Don’t use edits to reply to the author

create code fences with backticks ` or tildes ~
```
like so
```
add language identifier to highlight code
```python
def function(foo):
print(foo)
```
put returns between paragraphs
for linebreak add 2 spaces at end
_italic_ or **bold**
quote by placing > at start of line
to make links (use https whenever possible)
<https://example.com>
[example](https://example.com)
<a href="https://example.com">example</a>
MathJax equations $\sin^2 \theta$

formatting help »
answering help »

MathJax help »