Can Objects Travel Faster Than the Speed of Light?

[sirsmokealot]

2 objects are traveling in opposite directions from each other with more than 0,5c. Would an observer watching them perpendicular to their trajectory see that they are moving faster than c away from each other, or is there something that will "stop" this?

 

[jtbell]

IN that observer's reference frame, the two objects' separation does increase at a rate greater that c. Relativity does not prevent the rate of separation of two objects in a third reference frame from being greater than c.

What relativity does prevent is each object going faster than c in the other object's reference frame.

 

[sirsmokealot]

Thanks, that was exactly what I was uncertain about. You answered my question in the best possible way.