Highlights from the Daily edition

Agreement buys time for Paducah uranium enrichment plant

POLITICS AND POLICY: Lawmakers and DOE find way to retain jobs while securing fuel needed to produce tritium for nuclear arsenal.

A Rydberg-atom photon source

PHYSICS UPDATE: Single photons are a key ingredient in quantum information systems, but producing them on demand is difficult.

POLITICS AND POLICY: Measure would give scientists first dibs on helium should a shortage develop.

PHYSICS UPDATE: A major new study elucidates the roles of climate forcings, whether solar, volcanic, or human.

SCIENCE AND THE MEDIA: A Nature opinion piece calls for countering misinformation with postpublication commentary.

DOWN TO EARTH: Shells, bones, and teeth evolved in response to seawater chemistry changes triggered by the Great Unconformity.

PHYSICS UPDATE: Nuclear magnetic resonance is a mature and powerful tool. But its theoretical underpinning has a significant omission.

Images from BackScatter