Out of the limelight, theoretical physicists seek the math that can explain the universe’s particles and forces.

The rate at which the universe is expanding is expressed as a value called the Hubble Constant, generally abbreviated as “H 0 ...

The fundamental particles of the universe that physicists ... on ever smaller scales. String theory adds the new microscopic layer of a vibrating loop to the previously known progression from ...

The research is based on Nobel Prize winner Adam Riess' discovery that the universe's expansion is accelerating due to a ...

New observations from the James Webb Space Telescope suggest that a new feature in the universe—not a flaw in telescope ...

This month marks three years since the James Webb Space Telescope was first launched, which still feels something like a ...

The Hubble Space Telescope was the source of the Hubble tension saga; its observations have been a crucial part of the challenge. Astronomers have been using its successor, the James Webb Space ...

Gravitational distortions produced by distant galaxies show a slight—but notable—disagreement with Einstein's predictions.

That instead of living in a universe with ... Whether in the form of loop quantum gravity, causal dynamical trangulation or something else, the true nature of a theory of everything remains ...