Interestingly, RKV's travel at speeds that are apparently faster than light, because they immediately follow the light they emit. If an RKV was launched towards

Interestingly, RKV's travel at speeds that are apparently faster than light, because they immediately follow the light they emit. If an RKV was launched towards us from Sirius at 99% of the speed of light, the news of that launch would reach us 10 years later, with the missile following merely a month later. Thus, if we could track the missile, it would appear to cross 10 light years of distance in that month, at an apparent speed of almost 100c. We can see a related effect in real life with jets coming from black holes and other sources ejecting material at high speeds[1]. This is of course not true superluminal motion, but an optical illusion. 1: http://en.wikipedia.org/wiki/Superluminal_motion http://en.wikipedia.org/wiki/Superluminal_motion