How to Use cosmological constant in a Sentence

cosmological constant

noun
  • And if the cosmological constant is zero, then space-time is flat.
    — Shalma Wegsman, Quanta Magazine, 30 Mar. 2026
  • And so physicists brought the cosmological constant back, but with a new value.
    — Stephon Alexander, Wired, 31 Aug. 2021
  • The cosmological constant was little more than a fudge factor, to hold the universe still.
    — Zeeya Merali, Discover Magazine, 16 Apr. 2013
  • And the cosmological constant, in turn, is thought to get its energy from the vacuum.
    — Manon Bischoff, Scientific American, 1 May 2023
  • In other words, if dark energy is the cosmological constant, then w should equal -1.
    — Ramin Skibba, WIRED, 30 June 2023
  • In a way, reviving the cosmological constant made the predicament worse.
    — Clara Moskowitz, Scientific American, 1 Feb. 2021
  • So is this issue with the cosmological constant being so small, is that the main problem that the vacuum poses?
    — Steven Strogatz, Quanta Magazine, 26 July 2023
  • And there will be no Big Rip, because dark energy appears to be a cosmological constant.
    — Ethan Siegel, Big Think, 3 Oct. 2025
  • Why does empty space still have a non-zero amount of energy — dark energy, or a cosmological constant — intrinsic to it?
    — Big Think, 7 May 2026
  • If the universe is filled with enough dark energy — or what in Einstein’s day was called a cosmological constant — then over time, its push should cause space to expand.
    — Shalma Wegsman, Quanta Magazine, 30 Mar. 2026
  • This model aligns well with the new data and points to a negative underlying cosmological constant.
    — Sujita Sinha, Interesting Engineering, 2 Oct. 2025
  • The price of solving the cosmological constant problem would be to give up the Einsteinian hope of explaining the universe.
    — Dennis Overbye, New York Times, 7 Feb. 2018
  • If the cosmological constant is positive, then space-time is positively curved into what is now called de Sitter space.
    — Shalma Wegsman, Quanta Magazine, 30 Mar. 2026
  • Even those open to the multiverse idea would love to have alternative solutions to the cosmological constant problem to explore.
    — Quanta Magazine, 12 Mar. 2018
  • For decades, physicists assumed that the cosmological constant was exactly zero.
    — Stephon Alexander, Wired, 31 Aug. 2021
  • The fact that the vacuum energy density the cosmological constant has, this very tiny value is certainly one of the most puzzling.
    — Steven Strogatz, Quanta Magazine, 26 July 2023
  • If the cosmological constant is negative, then space-time is negatively curved into anti-de Sitter space.
    — Shalma Wegsman, Quanta Magazine, 30 Mar. 2026
  • In recent years, cosmologists have become able to measure the curvature of the universe, given by a number called the cosmological constant.
    — The Physics Arxiv Blog, Discover Magazine, 12 Sep. 2022
  • Many are claiming that dark energy must be evolving, while others demand more evidence and insist that dark energy is just fine still being a plain old cosmological constant.
    — Ethan Siegel, Big Think, 29 Aug. 2025
  • Einstein had invented this idea, called the cosmological constant, to balance gravity and keep the universe static and unchanging.
    — BostonGlobe.com, 9 Oct. 2019
  • Their observations suggest dark energy is not just a simple cosmological constant.
    — Sujita Sinha, Interesting Engineering, 2 Oct. 2025
  • At this point, the cosmological constant came back into fashion as a possible explanation for this mysterious form of energy.
    — Manon Bischoff, Scientific American, 1 May 2023
  • If dark energy were to remain at w = -1, that would be the equivalent of having a cosmological constant, leading to the heat death scenario outlined previously.
    — Ethan Siegel, Big Think, 3 Oct. 2025
  • To most physicists today, lambda, cosmological constant, and dark energy are closely synonymous.
    — Amir Aczel, Discover Magazine, 7 Mar. 2014
  • Overall there is no evidence from our measurements that the standard cosmological model with lambda, the cosmological constant, is wrong.
    — Kyle Dawson, Scientific American, 1 May 2021
  • Physicists come by their funny way of tallying contributions to the Higgs mass and cosmological constant honestly.
    — Quanta Magazine, 1 Mar. 2022
  • This was a direct contradiction of the leading hypothesis, which was that dark energy was the cosmological constant and, therefore, unchanging.
    — Keith Cooper, Space.com, 28 Dec. 2025
  • Chief among them is the cosmological constant, which is essentially the mathematical equivalent of dark energy.
    — Darren Orf, Popular Mechanics, 13 July 2023
  • This cosmological constant represents a form of energy inherent to space itself, and cannot be removed, separated from, or extricated from the very fabric of space.
    — Big Think, 22 Aug. 2025
  • In some cases, like with dark energy, Peebles helped show that a cosmological constant can make the Universe work long before the experimental evidence is present.
    — John Timmer, Ars Technica, 8 Oct. 2019

Some of these examples are programmatically compiled from various online sources to illustrate current usage of the word 'cosmological constant.' Any opinions expressed in the examples do not represent those of Merriam-Webster or its editors. Send us feedback about these examples.

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