Narwhal_Assassin t1_j27jbp5 wrote on December 30, 2022 at 5:11 AM

Reply to comment by desepticon in How fast does the Milky Way spin? How far does Earth move through space in a year? by Sabre-Tooth-Monkey

Nope! Let’s say each neutrino is going 51% the speed of light, in opposite directions. If neutrino A were to look at neutrino B, it would only see B traveling at about 81% the speed of light. B would see A going the same speed, but in the other direction.

Now, if you’re on the ground watching these particles fly, you would see them move apart with the gap between them growing at 102% the speed of light. However, the individual objects would only move at 51% C, so nothing is violating physics