String theory: Scientists are trying new ways to verify the idea that could unite all of physics

In 1980, Stephen Hawking gave his first lecture as Lucasian Professor at the University of Cambridge. The lecture was called ...

Ultrafast electron diffraction captures atomic layers twisting in response to light

A pulse of light sets the tempo in the material. Atoms in a crystalline sheet just a few atoms thick begin to move—not ...
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For the first time, light makes atoms dance in twisting two-dimensional materials

A flash of light has turned a sheet of atoms into a dance floor. In a feat of precision physics, researchers from Cornell and ...