Science In the Large Hadron Collider, two streams of protons travel in opposite directions at near light-speed before they collide with each other. Does this mean that the two particle streams are moving at nearly twice the speed of light relative to each other?
Solar System How do scientists predict the orbit and apparent “peak” magnitude of an incoming comet such as Comet ISON (C/2012 S1) when it is far from Earth?
