Learn how Hubble is measuring the expansion rate of the Universe in this new explainer from NASA's Goddard Space Flight ...

Using the James Webb Space Telescope, astronomers have created the most detailed map of the cosmic web ever.

Figure 4 The traditional Cavendish experiment for measuring the strength of gravity was a torsion balance with an “optical” ...

Inside some very special black holes, there may be a boundary called a Cauchy horizon. Columnist Leah Crane explores the ...

Scientists have reported the discovery of the largest reliably measured superstructure—an enormous arrangement of galaxies, galaxy clusters, and dark matter linked together by gravity—in the universe.

Scientists have discovered a galaxy as it was 13 billion years ago, 800 million years after the Big Bang. It contains possible evidence of the universe's first stars and is one of the most chemically ...

Astronomers have revealed the sharpest image ever captured of a filament in the cosmic web — the enormous hidden structure ...

One of the most puzzling findings from the JWST's observations of the early universe is the size of black holes. According to ...

A new dark energy model suggests the universe may eventually stop expanding and collapse in a giant Big Crunch.

Using the James Webb Space Telescope, astronomers have mapped the "cosmic web" of galaxies, the largest structure in the ...