Why did they form at that time? Astronomers know from observing distant exploding stars that the size of the universe has ...

Serhii Plokhy writes about Three Mile Island, Chernobyl and other disasters, and about the common impulse among governments “to hide information and, later, to spin or distort it.” By Jennifer Szalai ...

Plokhy (Nuclear Folly), a professor of Ukranian history at Harvard, delivers a stunning survey of nuclear accidents from the 1954 Castle Bravo test on the Marshall Islands to the 2011 Fukushima ...

The Bohr model, introduced by Danish physicist Niels Bohr in 1913, was a key step on the journey to understand atoms. Ancient Greek thinkers already believed that matter was composed of tiny basic ...

The Nature Index 2024 Research Leaders — previously known as Annual Tables — reveal the leading institutions and countries/territories in the natural and health sciences, according to their output in ...

If you think of a single atom as a grain of sand, then a wavelength of visible light—which is a thousand times larger than ...

Some 13.8bn years ago, the universe came into existence in the Big Bang. Its first moments were a period of pure energy with intense, possibly infinite, heat and density. As the universe expanded, it ...

Scientists have demonstrated that negative refraction can be achieved using atomic arrays -- without the need for artificially manufactured metamaterials. Scientists have long sought to control light ...

In a new study, physicists at the University of Colorado Boulder have used a cloud of atoms chilled down to incredibly cold temperatures to simultaneously measure acceleration in three dimensions—a ...

A new method for combining magnetic elements with semiconductors—which are vital materials for computers and other electronic devices—was unveiled by a research team led by the California NanoSystems ...