Taking advantage of a unique cosmic coincidence, astronomers have measured an effect predicted by Albert Einstein’s theory of General Relativity in the extremely strong gravity of a pair of superdense neutron stars. The new data indicate that the famed physicist’s 93-year-old theory has passed yet another test.
The scientists used the National Science Foundation’s Robert C. [...]

Researchers using nanotechnology have taken a step toward creating an “optical cloaking” device that could render objects invisible by guiding light around anything placed inside this “cloak.”

The Purdue University engineers, following mathematical guidelines devised in 2006 by physicists in the United Kingdom, have created a theoretical design that uses an array of tiny needles [...]