[quote][b]Posted by:[/b] Doctor Swag [quote][b]Posted by:[/b] XGO MONSTROUS OP, google the Red Shift like now. Do it.[/quote] I was right![/quote] A bit. You were wondering why light doesn't 'lag' behind a vehicle. To achieve red/blue shifts you need to have a very large distance between the light source to notice the shifts. We're talking lightyears.