dark energy
: a hypothetical form of energy that produces a force that opposes gravity and is thought to be the cause of the accelerating expansion of the universe
Recent Examples on the Web
//The first amazing images from a dark energy-hunting telescope have been revealed.
—
Fox News, "‘Hidden’ universe revealed in stunning first images from German telescope," 29 Oct. 2019
//Eventually, Peebles’s theories led to the discovery of dark energy, the invisible force that drives the expansion of the universe, and dark matter, the unobservable material that holds galaxies together.
—
Sarah Kaplan, Washington Post, "Nobel Prize in physics awarded for research on exoplanets and the structure of the universe," 8 Oct. 2019
//Peebles has also made decades of pivotal contributions to the study of the matter which pervades the cosmos but is invisible to telescopes, known as dark matter, and the equally mysterious energy of empty space, known as dark energy.
—
Robert T. Fisher, The Conversation, "Nobel Prize in Physics for two breakthroughs: Evidence for the Big Bang and a way to find exoplanets," 8 Oct. 2019
//That said, dark matter and dark energy, with their spooky names, remain mysteries to modern cosmology.
—
Akshat Rathi, Quartz, "Winners of the 2019 Nobel Prize in physics expanded our understanding of the universe," 8 Oct. 2019
//Surveying them should shed light on the evolution of the universe and the nature of the dark energy that is accelerating its expansion.
—
Daniel Clery, Science | AAAS, "Update: Telescope designed to study mysterious dark energy keeps Russia’s space science hopes alive," 15 July 2019
//At stake is the standard theory of the cosmos that has reigned since the discovery of dark energy.
—
Quanta Magazine, "Cosmologists Debate How Fast the Universe Is Expanding," 8 Aug. 2019
//Surveying them should shed light on the evolution of the universe and the nature of the dark energy that is accelerating its expansion.
—
Daniel Clery, Science | AAAS, "Update: Telescope designed to study mysterious dark energy keeps Russia’s space science hopes alive," 15 July 2019
//Natarajan, a theoretical astrophysicist and professor at Yale University, creates maps of where dark matter is clumped and how dark energy stretches space.
—
Quanta Magazine, "An Astrophysicist Who Maps the Universe’s Terra Incognita," 4 Feb. 2019
First Known Use of dark energy
1998, in the meaning defined above
Dictionary Entries near dark energy