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this post was submitted on 07 Aug 2025
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You’re assuming that the scientists have figured out why this happens, rather than just that it happens.
There’s plenty of science out there which consists of “oh, hey, look what I just noticed!“ And is just a lot of watching something happen without any explanation for it. That’s why scientists will continue to study this phenomenon until they figure it out. Probably so the company that is sponsoring them can profit from it in some way.
Basically all of astronomy, we have no "why" for any of it.
"Ah, we've deduced that about 27% of the universe is made of.... Dark matter. Don't ask. But more importantly...68% is made of dark energy. Also do not ask."
Also, gravity. It's very well understood. Mass exerts gravitational force. Like other things, it moves at the speed of light, and works in waves.
But why does mass exert gravity? NO FUCKING CLUE. Other forces work though electrical charge. But even antimatter exerts positive gravity.
Look up negative matter
Just read this article after you mentioned negative matter - actually it seems to be called negative mass?
So, would this also react to gravity by being pushed away?
That sounds really freaky :-D