The universe has a speed limit, and it's the speed of light. Nothing can travel faster than light — not even our best spacecraft — according to the laws of physics. So, what is the speed of light?
A team of physicists has done something that sounds impossible: they filmed points of absolute darkness racing through a beam of light faster than light itself can travel. The footage, captured using ...
Light that travels faster than the speed of light<br><br>-- View image here: http://episteme.arstechnica.com/groupee_common/emoticons/icon_confused.gif -- What the ...
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