If I've understood it correctly, the energy of an object depends on the reference frame, so when you accelerate, the CMB and CNB appear to gain energy (relative to your rest frame).

So if you are inside a lab that moves at 99.999% of the speed of light, will the CNB neutrinos gain enough energy to be detectable?

If I've understood it correctly, the energy of an object depends on the reference frame, so when you accelerate, the CMB and CNB appear to gain energy (relative to your rest frame).

So if you are inside a lab that moves at 99.999% of the speed of light, will the CNB (Cosmic Neutrino Background) gain enough energy to be detectable?