The Hubble constant is a fundamental parameter in cosmology that quantifies the rate of expansion of the universe. It is named in honor of astronomer Edwin Hubble, who discovered in 1929 that galaxies ...

a contemporary of Edwin Hubble, was relieved because he had concluded that the universe could not stay motionless without collapsing under the force of gravity. Today, the Hubble Constant is used ...

Determining the expansion rate of the universe—known as the Hubble constant—has been a major scientific pursuit ever since 1929, when Edwin Hubble first discovered that the universe was expanding.

This was a relief to Edwin Hubble’s contemporary, Albert Einstein, who deduced the universe could not remain stationary without imploding under gravity’s pull. The rate of cosmic expansion is now ...

Astronomer Edwin Hubble confirmed that the universe was expanding in 1929 ... which could be equal to the cosmological constant, a mathematical term in the equations of Einstein’s theory of general ...

Carnegie astronomy Wendy Freedman and team publish a new measurement of the expansion rate of the universe, or Hubble Constant, using Hubble Space Telescope observations to reach more distant Cepheid ...

In 1920, astronomers Harlow Shapley and Heber Curtis held a Great Debate. Shapley argued that the spiral nebulae were small ...

Chris Impey does not work for, consult, own shares in or receive funding from any company or organization that would benefit from this article, and has disclosed no relevant affiliations beyond ...

"The Hubble tension is now a Hubble crisis." The mystery of the Hubble tension has deepened with the startling finding that the Coma Cluster of galaxies is 38 million light-years closer than it should ...

A hundred years ago, astronomer Edwin Hubble dramatically expanded the size of the known universe. At a meeting of the American Astronomical Society in January 1925, a paper read by one of his ...