The SciencesMarch 17, 2003
How does relativity theory resolve the Twin Paradox?
Relativity
The SciencesJune 24, 2002
Peering Over Einstein's Shoulders
Seeking still more complete descriptions of the workings of spacetime, scientists are testing the boundaries of the special theory of relativity
The Young American Scientists Event—Register Now
The SciencesDecember 13, 1999
Recent articles in Scientific American have talked about traveling faster than light. But I always thought that Einstein's theory of relativity forbade that. What gives?