Three ways to travel at (nearly) the speed of light

One hundred years ago today, on May 29, 1919, measurements of a solar eclipse offered verification for Einstein's theory of general relativity. Even before that, Einstein had developed the theory of special relativity, which ...

Colliding lasers double the energy of proton beams

Researchers from Sweden's Chalmers University of Technology and the University of Gothenburg present a new method which can double the energy of a proton beam produced by laser-based particle accelerators. The breakthrough ...

Powerful lasers for fragile works of art

"Time alters all things," wrote the Latin poet Horace. Museum conservators would love to prove him wrong. Protecting artworks from the effects of aging requires an understanding of the way materials alter over time. Professor ...

An interaction of slipping beams

Accelerators generate beams of subatomic particles for cutting-edge science. The greater a beam's intensity, the more opportunities there are to study particle interactions. One way to increase the intensity is to merge two ...