red giant

Definition of red giantnext

Example Sentences

Examples are automatically compiled from online sources to show current usage. Read More Opinions expressed in the examples do not represent those of Merriam-Webster or its editors. Send us feedback.
Recent Examples of red giant At that point, our yellow sun will start swelling into a red giant star about 100 times its current size. Andrew Paul, Popular Science, 1 July 2026 Roughly five billion years from now, the sun will follow the same path as this star, expanding into a red giant before shrinking into a white dwarf. Sam MacDonald, Scientific American, 1 July 2026 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 The first is the red giant phase, during which the sun will dramatically increase in size after running out of hydrogen in its core. Rupendra Brahambhatt, Interesting Engineering, 20 June 2026 See All Example Sentences for red giant
Recent Examples of Synonyms for red giant
Noun
  • The white dwarf emits radiation and produces a giant gas bubble—the lion’s face—that destroys dust in its path.
    Mary Randolph, Scientific American, 12 Aug. 2026
  • This oxygen-rich remnant is a white dwarf, or the hot core of a dying star.
    Chelsea Gohd, Space.com, 11 Aug. 2026
Noun
  • Betelgeuse has a companion star In 2019, astronomers noticed a strange dimming in the light from Betelgeuse, a bright red star in the Orion constellation.
    ArsTechnica, ArsTechnica, 3 Aug. 2026
  • After a welcome presentation and cocktail party—Kir Royales in hand—slip into Moments, the onboard restaurant by German Michelin‑starred chef David Görne, whose cooking has held a red star since 2016 and a Green Star for sustainability since 2020.
    Lewis Nunn, Forbes.com, 21 July 2026
Noun
  • The twinkling point of light to the moon's upper left is the binary star system Alpha Virginis, also known as Spica, which shines as the brightest point in the constellation Virgo.
    Anthony Wood, Space.com, 4 Aug. 2026
  • The study has major implications for studying binary star systems as well.
    Damien Pine, Scientific American, 21 July 2026
Noun
  • Hubble’s images reveal an intricate web of gas and dust spreading outward from the explosion’s center, where a rapidly spinning neutron star remains.
    Kaif Shaikh, Interesting Engineering, 15 Aug. 2026
  • After the explosion, Betelgeuse A will probably leave behind a superdense neutron star with an incredibly strong magnetic field.
    Phil Plait, Scientific American, 14 Aug. 2026
Noun
  • In the past, the field of experimental science was a slow endeavor as scientists were limited to changing one variable at a time before recording an experiment’s results.
    Chase Hunter, Mercury News, 14 Aug. 2026
  • Input any value for this variable, and the equation gives you an infinite sum that adds up to another number—its output.
    Joseph Howlett, Scientific American, 12 Aug. 2026
Noun
  • This variable star is also located 250 light-years from Earth, but is sadly lost from view in the glare of the sun during the summer months.
    Anthony Wood, Space.com, 29 June 2026
  • Mroz counters, however, that none of those cases are actual microlensing events and instead the mere fluctuations of ordinary variable stars.
    Jonathan O'Callaghan, Scientific American, 4 June 2026
Noun
  • That gets the paper 59 trillion km thick, or just more than six light-years (just past another red dwarf, Barnard’s Star, for that matter).
    Phil Plait, Scientific American, 7 Aug. 2026
  • This binary consists of a pre-main-sequence star that has gathered mass but hasn't yet triggered the fusion of hydrogen to helium in its core, and its companion, a red dwarf star.
    Robert Lea, Space.com, 17 July 2026
Noun
  • Even though novas are exceptionally bright, supernovas are brighter—reaching billions of times brighter than the sun at their peak.
    Elizabeth Gamillo, Smithsonian Magazine, 3 July 2025

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Cite this Entry

“Red giant.” Merriam-Webster.com Thesaurus, Merriam-Webster, https://www.merriam-webster.com/thesaurus/red%20giant. Accessed 19 Aug. 2026.

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