Over the past few years, multiple neutrino experiments have detected hints for leptonic charge parity (CP) violation—a finding that could help explain why the universe is made of matter and not antimatter. So far, matter-antimatter asymmetry cannot be explained by...
Lots of interesting stuff happens really fast. Think about a chemical reaction, for instance. The rate of reactions might be slow, but each individual reaction proceeds quickly. Now, researchers have found a way to shape x-ray pulses to create ultra-short pulses that can...
The first experimental verification of Snell's law for spin waves has been carried out by an international team of researchers. By imaging the incident, refracted and reflected waves at interfaces in thin ferromagnetic films, the team has shown how the law is different for...
Physicists in the U.K. and the U.S. have shown how to use one kind of diffuse cosmic radiation – the cosmic infrared background (CIB) – to create a better map of potentially very important variations in another –...
For nearly 20 years, physicists have known that the expansion of the universe has begun to speed up. This bizarre acceleration could arise because some form of mysterious dark energy is stretching space. Or, it could signal that physicists' understanding of gravity isn't...
Until recently, scientists didn't think it could be done. They thought the fundamental laws of physics would forbid it. But a persistent group of scientists have now created a hologram of a solitary photon of light.
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