20,000 black holes near Sagittarius A*?!

[N0speed]

https://www.nature.com/articles/nature25029

Another good reason for me not to start with exploration seriously - way too exciting and dangerous!

 

[BlackSpaceCowboy]

[video=youtube;-OwO3Awdy3M]https://www.youtube.com/watch?v=-OwO3Awdy3M[/video]

 

[Arthur Shappey]

https://www.nature.com/articles/nature25029

Another good reason for me not to start with exploration seriously - way too exciting and dangerous!

Apparently black holes are really cuddly in ED.

 

[Friedenreich Xante]

Yeah in E you can touch the Event horizon and then resume your trip. No risk at all.

 

[Noob]

For some reason, the title reminded me of 4,000 holes in Blackburn, Lancashire.

 

[Muetdhiver]

Given that those 20k BH are supposed to be confined in a few lyr radius around sagA* it means that there should a BH like every 0.5 lyr or so. Crazy.

 

[[VR] Deggial]

Yea, WIMPs are dead, long live MACHOs!

I don’t think though, that ED’s ‘Star Forge’ reflects this relatively new discovery.

As Friedenreich wrote, the black holes are unfortunately paper tigers. I just recently watched a documentary where they stated (very much to my surprise) that small black holes are - at least in one respect - even more dangerous than large ones: the gravity pull ramps up over a much smaller distance. The front end of your space ship will experience a way higher gravity than its back part, literally ripping the vessel in pieces. At larger black holes, the gravity gradient is way smoother.

Anyway, nothing like that will happen in ED. ED’s black holes are just like cute puppies and not the fear inducing monsters they should be. :/

 

[Muetdhiver]

It's true, tidal forces are much more dangerous arround small ones.

Entering SagA* horizon alive is very possible. 3 solar M BH ? Not likely

 

[Friedenreich Xante]

I just recently watched a documentary where they stated (very much to my surprise) that small black holes are - at least in one respect - even more dangerous than large ones: the gravity pull ramps up over a much smaller distance. The front end of your space ship will experience a way higher gravity than its back part, literally ripping the vessel in pieces. At larger black holes, the gravity gradient is way smoother.

Exactly and apparently the Event horizon is situated further outside the black hole the bigger it is. So technically, you could pass the Event horizon and survive (for a short period of time) at huge black holes like Sag A*.

 

[Muetdhiver]

Exactly and apparently the Event horizon is situated further outside the black hole the bigger it is. So technically, you could pass the Event horizon and survive (for a short period of time) at huge black holes like Sag A*.

This is correct.

The cause is that the Schwartzschild radius grows linearly with the mass, unlike a regular spherical object whose radius would increase with the cube root of the mass.

Since the tidal forces have a 1/r^3 distance to the massive object (singularity), A supermassive BH will have low tidal forces at its horizon compared to a very small one.