Submitted by Grump-Dog t3_10pfa2s in explainlikeimfive
Flash635 t1_j6k4mf6 wrote
It's the fastest thing that we know of. That's the beauty of science, we can accept new information as it becomes available but for the time engaged all the calculations indicate the light is the fastest known thing.
Harbinger2001 t1_j6k70oz wrote
It’s a bit more well known than that. There is a maximum speed at which anything in the Universe can travel based on the constraints of General Relativity. Things with no mass must travel that speed. Anything with mass is slower. So the only way something could be faster, is if it had negative mass, which does not exist.
Flash635 t1_j6k7g1q wrote
That we know of.
Harbinger2001 t1_j6k8e1n wrote
We have a very accurate mathematical model of the universe and it does not have anything in it that requires negative mass.
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