The center of our galaxy exploded 'recently'

[UM-Bot 7,964]

Scientists have discovered that a high-energy flare ripped through the galaxy in the relatively recent past.

https://www.unexplained-mysteries.com/news/331102/the-center-of-our-galaxy-exploded-recently

[joc 13,328]

maybe a silly question but....

Do all galaxies have a blackhole at their center?  

[lightly 6,155]

1 hour ago, joc said:

maybe a silly question but....

Do all galaxies have a blackhole at their center?  

I think that's a good question joc.    All spiral galaxies obviously spin around  something Extremely massive at their centers...most likely a black hole?     But there are other types of galaxies, including what is called an irregular Galaxy.

[Noteverythingisaconspiracy 14,825]

1 hour ago, joc said:

maybe a silly question but....

Do all galaxies have a blackhole at their center?  

As far as we can observe it does appear that most spiral galaxies formed around supermassive blackholes.

Edited October 8 by Noteverythingisaconspiracy

[joc 13,328]

2 hours ago, Noteverythingisaconspiracy said:

As far as we can observe it does appear that most spiral galaxies formed around supermassive blackholes.

Thank you... Which makes since because galaxies are rotating... as if they were slowly being sucked down the bathtub hole..which gives rise to another question. What eventually happens to a black hole? 

[Noteverythingisaconspiracy 14,825]

1 hour ago, joc said:

Thank you... Which makes since because galaxies are rotating... as if they were slowly being sucked down the bathtub hole..which gives rise to another question. What eventually happens to a black hole? 

It is thought that eventually they will evaporate due to something called Hawking radiation, but how that works is way above my paygrade so here is a link instead:

https://en.wikipedia.org/wiki/Hawking_radiation

[joc 13,328]

7 hours ago, Noteverythingisaconspiracy said:

It is thought that eventually they will evaporate due to something called Hawking radiation, but how that works is way above my paygrade so here is a link instead:

https://en.wikipedia.org/wiki/Hawking_radiation

I pretended I was understanding all that until I got to the equations....suffice to say...yeah....beyond my pay grade as well.

[lightly 6,155]

I wonder why spiral galaxies form a flattened Disk shape?    I've probably read about it before ,but I don't remember any explanations for that .   

. . . . The discs are bulged in the center.... And elliptical galaxies are roundish ,rather than flat.

Edited October 9 by lightly

[cerberusxp 208]

Yes,a super massive black hole!

[Jon the frog 1,113]

So puny we are...

[Waspie_Dwarf 12,721]

4 hours ago, Jon the frog said:

So puny we are...

Speak for your self

 

[Jon the frog 1,113]

On 10/18/2019 at 4:39 PM, Waspie_Dwarf said:

Speak for your self

 

Puny dwarf !