A tabletop ring of atoms brings the universe's doomsday vacuum collapse into the lab

The simplicity of a hydrogen atom makes it an ideal model for studying atomic structure and interactions. Yet, despite the fact that its simplest form consists of only one proton and one electron, physicists have had a hard time pinning down the exact charge radius of the proton. But a new study, published in the journal Physical Review Letters, outlines a method of measurement that helps to resolve some past discrepancies.

An 11th-century Anglo-Saxon seal belonging to Edward the Confessor has been rediscovered more than 40 years after being declared lost. The wax impression of the "Saint-Denis seal" disappeared without official explanation in the 1980s from the Archives Nationales in Paris, where it had resided for almost 200 years.

Over the past 20 years, nearly half of commercially important Mediterranean fish species have shifted their distribution due to climate change, causing marine species to move away from their historical locations. These significant changes in fish habits are expected to have a major impact on biodiversity, ecosystems and fishing opportunities.

For decades, the study of British politics has been defined by an extreme negativity bias, focusing almost exclusively on policy blunders, failures, fiascos, disasters, and crises. Although this criticality is crucial to academic analysis, it does create the risk that successful policies might be overlooked or ignored that, in turn, risks producing a skewed account of how the U.K. is actually governed. Even if most policies fail (which they don't) the analysis of those rare policies that achieve