Jul 24 2011
Time Travel Impossible, Say Scientists
By showing a single photon cannot travel faster than the speed of light, scientists prove time travel is impossible.
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Mar 16 2011
Could Higgs Particle be a Time-Traveling Assassin?
Is there another type of Higgs particle that can travel through time? Could it be used for evil?
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Feb 20 2011
A Universe Stranger Than We Can’t Imagine
Ever looked up at the night sky and wondered: What is up there?
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Jul 30 2010
Daydreams of Foreign Travel Prove Most Transporting
A daydream about a foreign vacation or a long-ago memory prove most likely to help you forget the present..
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Jul 09 2010
So You Want To Be A Time Traveler?
While time dilation and quantum tunneling might help, relativity will always get in the way of your time-traveling dreams.
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May 07 2010
Stephen Hawking’s Time Machine
British cosmologist Stephen Hawking has outlined not one, but three, theoretically realistic ideas for traveling through time, one of which he says is even practical.
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Apr 22 2010
Is Time Travel Possible?
Modern culture is inundated with tales of time travel. But is it really possible to travel through time? I talk with theoretical physicist and cosmologist Paul Davies, author of "How to Build a Time Machine," to find out.
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Mar 31 2010
Turning a Hot Tub into a Time Machine
Assuming a Hot Tub Time Machine has the same energy requirements as Back To The Future's DeLorean, what kind of upgrade would it need?
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Feb 02 2010
Lost in Spacetime
Fans of ABC's Lost are eagerly waiting tonight's premiere of the final season -- and those fans include a good number of physicists, such as Sean at Cosmic Variance. Last week he wrote an entire blog post about the physics ...
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