1. The problem statement, all variables and given/known data Use relativistic equations and γ to demonstrate the following: b) Light travels through space but not in time 2. Relevant equations Lorentz factor γ = 1 / √(1 - [v/c]^2) Time dilation t = γ t° Length contraction L = γ L° Mass relativity m = γ m° E = m c^2 3. The attempt at a solution To be honest, I'm not exactly sure how to approach this. I don't quite understand the concept behind what the question is really asking for. Furthermore, I don't know how I can use these equations to prove that light does not travel through time.