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Black Hole
Posted: Sat Apr 13, 2019 3:48 pm
by JohnN
I guess we've all been gasping at the photo of the black hole, 55million light years away. But what I want to know is how do we know that it's still there? It could have ceased to exist 54 million years ago!
Re: Black Hole
Posted: Sat Apr 13, 2019 4:07 pm
by Diane
Good question. And if it's not there, where has it gone to. And what's on the other side?? (my head hurts just trying to imagine).
Re: Black Hole
Posted: Sat Apr 13, 2019 4:33 pm
by Primrose
I think it's difficult to get our heads round some of these issues. I always wonder how the scientists ever manage to understand enough about it to be able to lecture on it. I smiled are John's comment that it could have ceased to exist many years ago. As I imagine, could many of the stars we currently see which are thousands of light years away.
Re: Black Hole
Posted: Sat Apr 13, 2019 5:51 pm
by alan refail
- trump.jpg (63.67 KiB) Viewed 2932 times
Re: Black Hole
Posted: Sat Apr 13, 2019 6:44 pm
by oldherbaceous
I suppose we shouldn't laugh....what the heck...
Re: Black Hole
Posted: Sat Apr 13, 2019 6:55 pm
by Geoff
And another
- FB_IMG_1555008319894.jpg (64.16 KiB) Viewed 2923 times
Re: Black Hole
Posted: Sat Apr 13, 2019 8:07 pm
by Shallot Man
Diane wrote:Good question. And if it's not there, where has it gone to. And what's on the other side?? (my head hurts just trying to imagine).
More to the point. If it is a hole. How do you know it is there.
Re: Black Hole
Posted: Sat Apr 13, 2019 8:09 pm
by Westi
Shame Steven Hawkins didn't live long enough to see his ginormous mathematical equations proved to be absolutely right. he may even have been able to answer John's question.
Re: Black Hole
Posted: Sat Apr 13, 2019 8:28 pm
by robo
There is only one thing we can be certain of ,it can't be half a hole