Showing results for Hubble constant. Search instead for Double consonant.

Hubble constant

British

noun

Also called: Hubble parameter. the rate at which the expansion velocity of the universe depends on distance away. It is currently estimated to lie in the range 60–80 km s ^–1 megaparsec ^–1

"Collins English Dictionary — Complete & Unabridged" 2012 Digital Edition © William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009, 2012

Example Sentences

Examples are provided to illustrate real-world usage of words in context. Any opinions expressed do not reflect the views of Dictionary.com.

Currently, astronomers rely on two main approaches to measure the Hubble constant, but they do not agree with each other.

From Science Daily • Apr. 29, 2026

Their findings, published on April 10 in Astronomy & Astrophysics, place the Hubble constant at 73.50 ± 0.81 kilometers per second per megaparsec, achieving a precision slightly better than 1%.

From Science Daily • Apr. 12, 2026

This research is presented in a paper titled "The Local Distance Network: A community consensus report on the measurement of the Hubble constant at ∼1% precision" to published in Astronomy & Astrophysics.

From Science Daily • Apr. 12, 2026

In their latest work, Yunes, Cousins, and their colleagues describe a new way to estimate the Hubble constant by studying black hole collisions that current detectors cannot individually pick up.

From Science Daily • Mar. 1, 2026

De Vaucouleurs was equally certain that the Hubble constant was 100.*

From "A Short History of Nearly Everything" by Bill Bryson

Definitions and idiom definitions from Dictionary.com Unabridged, based on the Random House Unabridged Dictionary, © Random House, Inc. 2023