Scientists in the U.S. have built the most accurate clock in the world—so precise it can measure time down to 19 decimal ...

Jacobson/NIST After two decades of tinkering, scientists at NIST have unveiled the world’s most accurate atomic clock, a ...

For nearly a century, scientists have been trying to find dark matter—the invisible substance that seems to make up about 80% ...

Dustin Mulvaney traces the current deregulatory bonanza that the Trump administration has unleashed on public lands and waters to the Wise Use movement of the 1980s and the Sagebrush Rebellion that ...

The National Institute of Standards and Technology has set a new world record for the most accurate aluminum ion-based ...

In this work, a rubidium fountain clock through an 84km commercial optical fiber link was used to steer the atomic time scale generated by a clock ensemble with 2 hydrogen masers and 8 high ...

Two countries to the west, a thumbnail-sized glass cell in Basel does a similar trick with warm-rubidium vapour. Together, ...

An appreciation of Bob Alvarez, a fearless advocate for those harmed by the US nuclear weapons complex, a former Energy ...

China’s share of global lithium reserves rose to 16.5 percent this year, second only to Chile. Beyond raw lithium, China ...

The deposit, located in Linwu county in Chenzhou, boasts 490 million metric tons of lithium, along with 1.31 million tons of lithia. The deposit also includes associated minerals such as rubidium, ...

A recent study outlines how lithium-sulfur batteries may finally overcome today's lithium-ion systems' charging speed and ...

An attosecond—or 0.000000000000000001 second—is no time at all for a person. That is not so for electrons, atoms and molecules, and laser-wielding scientists are revealing the action ...