Morning Overview on MSN
Ytterbium optical clock design could sharpen tests of fundamental physics
A transportable ytterbium optical lattice clock has been commercially shipped, rapidly recommissioned, and tested against reference systems at the U.S. Naval Observatory, according to a recent arXiv ...
One of the telescopes at the U.S. Naval Observatory has been in continuous use since 1873. Astronomers continuously track the motions of some of the brightest stars in the sky. The information is used ...
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