What would happen if two rockets traveling at the speed of light, in opposite directions, collided?
by 
Wulfweard
ANSWERS: 5
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It would frighten the Turtle, who supports the Earth on its back... Or was it a trio of Elephants? Anyway, one would have to wait an awfully long time for the collision, and one must have Faith in the doctrine of a Finite, Curved Universe. I'm not willing to wait, and it takes just as much energy to believe in a Finite Universe as in an Infinite Universe, occupied by a Deity.
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You'd get one hell of an explosion.
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Time stops.
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A big bang?
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First of all, rockets cannot travel at the speed of light, so far as we know. But, in theory, they could get close to it... say 99.9% of the speed of light. If you could accelerate two rockets to .999c and smack them into each other, you would have invented a very large and powerful particle accelerator. At those sort of energy levels, you'd be breaking apart the atoms and subatomic particles that the rockets are made of, perhaps producing a lot of short-lived exotic particles. And each rocket probably wouldn't be able to see the other one coming at it, because the light waves would be doppler shifted off the scale of human vision, not to mention the time dilation that occurs, shortening the distance and time till impact for the occupants of the rockets.
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