How to Use red giant in a Sentence

red giant

noun
  • Two stars, a red giant star and a white dwarf, orbit each other.
    — Julia Gomez, USA TODAY, 13 June 2024
  • That’s why Freedman set out to use tip of the red giant branch stars.
    — Quanta Magazine, 26 Feb. 2020
  • When that happens, stars puff out into red giants.
    — Mike Lynch, Twin Cities, 7 Sep. 2025
  • Instead, her team looked toward old, swollen stars called red giants.
    — Joshua Sokol, Science | AAAS, 19 July 2019
  • The cause of these kicks is the ejection of blobs of plasma from the red giant stars.
    — Robert Lea, Space.com, 22 June 2026
  • The red giant star Aldebaran makes up one of the Bull’s eyes.
    — Joshua Rapp Learn, Discover Magazine, 4 Aug. 2022
  • And what will happen to the planets once the sun enters the red giant phase?
    — Eric Betz, Discover Magazine, 6 Feb. 2020
  • This causes the entire star to bloat out into what’s known as a red giant.
    — Mike Lynch, Twin Cities, 15 Dec. 2019
  • Astronomers have gotten their best look yet at the surface of a red giant star.
    — Jason Daley, Smithsonian, 31 Jan. 2018
  • The star system consists of a red giant star and a white dwarf locked in a close orbit.
    — Jamie Carter, Forbes.com, 25 June 2026
  • So these stars take on an orange-red appearance, hence the red giant moniker.
    — Jennifer Ouellette, Ars Technica, 29 Mar. 2022
  • In five billion years' time, our sun will turn into a white dwarf after its red giant phase.
    — Keith Cooper, Space.com, 19 Dec. 2024
  • As a red giant, the star was huge—10 times larger than Earth's sun.
    — David Grossman, Popular Mechanics, 5 Aug. 2019
  • In 5 billion years, our sun will balloon into a red giant star.
    — Quanta Magazine, 20 Dec. 2023
  • Scattered among them are a few yellowish-red giants.
    — Michele Laufik, Martha Stewart, 13 Jan. 2026
  • Can life survive in the solar system once the sun dies and becomes a red giant star?
    — Paul Sutter, Space.com, 3 June 2025
  • That marks the end of the main sequence phase and the beginning of the red giant stage of a star's life.
    — Robert Lea, Space.com, 7 Nov. 2025
  • That cause the layers to expand and transform the star into a red giant.
    — Julia Musto, Fox News, 4 May 2023
  • Hydrogen from the red giant is drawn to the surface of the white dwarf because of the pull.
    — Julia Gomez, USA TODAY, 13 June 2024
  • They are thought to form when red giant or red supergiant star collides with a neutron star.
    — Eric Betz, Discover Magazine, 26 Mar. 2021
  • One of the key elements of this is how far the magnetism at the core of the red giant extends.
    — Robert Lea, Space.com, 23 Apr. 2026
  • But the latest study is relying on a different kind of stars called red giants.
    — Ashley Strickland, CNN, 16 July 2019
  • As the two orbit each other, the intense gravity of the white dwarf pulls gas off the red giant star.
    — Mike Lynch, Twin Cities, 13 Apr. 2025
  • As the two orbit each other, the intense gravity of the white dwarf pulls gas off the red giant star.
    — Mike Lynch, Twin Cities, 26 May 2024
  • As the red giant sheds its outer layers, the white dwarf will pull the hydrogen waste to its own surface.
    — Jack Knudson, Discover Magazine, 6 Jan. 2025
  • Eventually, the helium in a red giant's core will be spent, and the core will shrink again.
    — Jennifer Ouellette, Ars Technica, 29 Mar. 2022
  • When viewed in these different spectral lines, the red giant was swollen out to many times its original size.
    — Robert Lea, Space.com, 11 Dec. 2025
  • At that time, the sun will expand into a red giant star, subsuming the Earth in a fiery blaze.
    — Madeleine Stone, National Geographic, 20 Aug. 2020
  • In the evening, red giant flying squirrels emerged from their tree holes before sailing from trunk to trunk in the twilight.
    — Mihir Zaveri, New York Times, 25 Nov. 2024
  • In the evening, red giant flying squirrels emerged from their tree holes before sailing from trunk to trunk in the twilight.
    — Mihir Zaveri, Chicago Tribune, 22 Jan. 2025

Some of these examples are programmatically compiled from various online sources to illustrate current usage of the word 'red giant.' 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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