Improving measurements of the kilogram

Until 2018, the SI unit of mass, the kilogram, was defined as the mass of a real object: the International Prototype Kilogram, kept in a secure facility in the outskirts of Paris. On November 16, 2018, the kilogram was given ...

Statistical analysis of radio-flaring brown dwarf population

Brown dwarfs are known as "failed stars," owing to the lack of central hydrogen burning. They bridge the gap between planets and stars. Some brown dwarfs are found to maintain kilogauss magnetic fields and produce flaring ...

Quantum sensor can detect electromagnetic signals of any frequency

Quantum sensors, which detect the most minute variations in magnetic or electrical fields, have enabled precision measurements in materials science and fundamental physics. But these sensors have only been capable of detecting ...

Strange radio burst raises new questions

Astronomers have found only the second example of a highly active, repeating fast radio burst (FRB) with a compact source of weaker but persistent radio emission between bursts. The discovery raises new questions about the ...

Experts chip away at corrosion for the future of fusion

Practical fusion energy is not just a dream at the Department of Energy's Oak Ridge National Laboratory. Experts in fusion and material science are working together to develop solutions that will make a fusion pilot plant—and ...

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