expanding universe

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expand′ing u′niverse

a model of the universe, based on observed redshifts of distant galaxies, in which the galaxies are receding from each other at a speed proportional to their separation.
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ex·pand·ing universe

A model of the universe in which the volume of the universe is expanding. It is based on the idea that the red shift in light from distant galaxies is evidence that all galaxies are moving away from one another. See Notes at big bang, Doppler effect.
The American Heritage® Student Science Dictionary, Second Edition. Copyright © 2014 by Houghton Mifflin Harcourt Publishing Company. Published by Houghton Mifflin Harcourt Publishing Company. All rights reserved.
References in periodicals archive ?
The spiral galaxy is at a distance of about 60 million light-years from our Milky Way and its trajectory toward our home planet is rare in an expanding Universe.
But to astrophysicists trying to get a handle on our place in this expanding universe, this is a cosmic concern.
"Born before Edwin Hubble discovered the expanding universe, he ultimately created an expanding universe of his own - one of scientifically literate superheroes such as Spider-Man , The Hulk, Iron Man, & Black Panther.
Gail Collins-Ranadive, a Unitarian Universalist minister and peace worker, shares her musings on the place and purpose of humans in this dynamic, expanding universe. The wisdom of mystics, she writes, is increasingly seen to merge with the startling revelations of quantum physics.
Summary: New Delhi, [India] July 17 (ANI): Google on Tuesday created a special doodle and marked the 124th birth anniversary of Belgian astronomer Georges Lemaitre, the man who divulged the truth behind the expanding universe.
Astronomers theorize that this phenomenon often occurs as a result of mergers between galaxies in an expanding universe. A smaller galaxy will join with a larger, main galaxy, depositing its own, central SMBH onto a wide orbit within the new host.
The physicists explore the theory of dark matter, the matter-antimatter asymmetry problem, scale hierarchies and string cosmology, texture zero mass matrices and CP violation, radiative neutrino mass generation, fermions and bosons in the expanding universe, and the acceleration of dust ball expansion due to GR gravitational time dilation.
In "Don't Pay for Your MBA: The Faster, Cheaper, Better Way to Get the Business Education You Need", Pickard shows self-starters, career changers, and budding entrepreneurs how to navigate the expanding universe of online education.
The KED model universe can originate from a collapsing huge-mass black hole in its internal region, describable by isotropic coordinates, as a new expanding universe. The mass of such a collapsing black hole passes, for a long time and with a constant rate, M = [c.sup.3]/2G, through the past horizon (Schwarzschild trap surface), generating a modified Milne-type expanding Big-Bang universe.
"Cash is king for many consumers, even in today's expanding universe of digital payment options," Cardtronics Chief Marketing Officer Tom Pierce said.
The supernova continues to venture through the expanding universe, billions of years into the future, while you sit there unaware of all that is going on.
Expanding Universe: Photographs from the Hubble Space Telescope