Add Yahoo as a preferred source to see more of our stories on Google. A telescope image of warped yellow starlight forming a smily face against a black background Scientists could soon test Einstein's ...
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What near light-speed travel would do to time, mass and distance?
A spacecraft traveling at 99 percent the speed of light toward Alpha Centauri would cross 4.3 light-years in what feels like months to its crew, while decades tick by on Earth. That asymmetry is not ...
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Physicists explore idea that gravity could drive the flow of time
Theoretical physicists have spent decades wrestling with a disorienting possibility: that the flow of time is not woven into the basic laws of physics but instead emerges from gravity’s effect on heat ...
Scientists could soon test Einstein's theory of general relativity by measuring the distortion of time. General relativity states that gravity is the result of mass warping the fabric of space and ...
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