A massive American web of orbiting missile interceptors could in theory protect the U.S. from an all-out Russian nuclear ...

Atomic clocks are more accurate than those used to define the second, suggesting the definition might need to change ...

Atomic nuclei exhibit multiple energy scales simultaneously—ranging from hundreds down to fractions of a megaelectronvolt. A new study demonstrates that these drastically different scales can be ...

Rubies and emeralds have the colors they do because, like many substances, they absorb some colors of light. Most visible light, like sunlight, is composed of all the colors of the rainbow: red, ...

In pursuit of empire and domination, of territorial conquest or racial and religious supremacy, wars stand as a stubborn ...

Researchers have announced results from a new search at the European X-ray Free Electron Laser (European XFEL) Facility at ...

Researchers at the University of Oxford, together with colleagues at the UK Science and Technology Facilities Council (STFC) and at several other ...

Nearly half a century ago, physicists proposed that the universe might be trapped in a metastable state known as a false vacuum. This state appears stable but could, over immense timescales, ...

For the first time, researchers in China have synthetically produced a nearly pure hexagonal diamond, marking a significant ...

Scientists are racing to develop new materials for quantum technologies in computing and sensing for ultraprecise ...

The gas giant WASP 121b, also known as Tylos, has an atmospheric structure unlike any we have ever seen, and the fastest ...