this post was submitted on 26 Jul 2023
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We know that light and even gravitational waves propagate at the speed of light.

So if something catastrophic happened to the black hole at the center of our galaxy (about 26,000 lightyears away), would there be any way for us to have advance knowledge of it before we could observe it with telescopes or before we could measure the gravitational changes?

Ludicrous example: say the black hole at the center of the galaxy disappeared 25,999 years ago. Is there a way we would have known about it by now, or do we just have to wait out another year to see if we're all screwed?

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[–] [email protected] 1 points 1 year ago

I totally misread your post as you were meeting up with some old friends who are science geckos and I wanted the story behind all of that, but then I read it again and was disappointed in the lack of geckos.

Enjoy your boring gecko-free meet up.