Astrophysicists propose a new “stochastic siren” method using the gravitational-wave background from black hole mergers to ...

We have known for several decades that the universe is expanding. Scientists use multiple techniques to measure the present-day expansion rate of the universe, known as the Hubble constant. These ...

A proposed five-satellite Cosmic Positioning System could measure cosmic distances directly and help address discrepancies in the Hubble constant through solar system–scale triangulation.

Thin films are two-dimensional (2D) material layers deposited on a bulk substrate, possessing a thickness of a few nanometers to impart properties that cannot be realized by base materials. The unique ...

Hubble constant. The Hubble constant is crucial in understanding the rate of expansion of the universe and, by extension, ...

Powerful, safe batteries are a key component in the success of electric mobility. This makes measuring a battery's capacity and state a crucial factor. The most informative method of doing this is ...