Three years later a British physicist, Arthur Eddington, watched what happened to light from stars that were close in the sky to the sun during a solar eclipse.

ECONOMIST: Spotting dark matter, at last

"By using natural crystals for the first time, rather than artificial metamaterials, we have been able to scale up the size of the cloak and can hide larger objects, thousands of times bigger than the wavelength of the light, " said Shuang Zhang, the University of Birmingham physicist who led the research.

BBC: Invisibility cloaking benefits from crystal-clear idea

This fall, the aesthetics of light will be explored in a course co-taught by Sidney Nagel, a physicist, and Gray Center fellow James Carpenter.

WSJ: Robert Zimmer | Where Theory and Practice Make Perfect | Cultural Conversation by Joel Henning

Einstein's special relativity theory that says energy equals mass times the speed of light squared underlies "pretty much everything in modern physics, " said John Ellis, a theoretical physicist at CERN who was not involved in the experiment.

MSN: Neutrinos clocked moving at faster-than-light speed