as in white dwarf
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Recent Examples of red giant
In the process of becoming a white dwarf, a star will expand to 10 to 100 times its original radius during the red giant phase.
—
Juliette Becker, The Conversation, 28 Aug. 2025
Webb’s data revealed an object, named NIR-1, which could be a massive star or a red giant — a sun-like star at the end of its life that has brightened significantly.
—Ashley Strickland, CNN Money, 26 Aug. 2025
The most obvious shape is Orion’s Belt — three stars (Alnitak, Alnilam and Mintaka) in a straight line —with red giant Betelgeuse roughly between the belt stars and Jupiter.
—Jamie Carter, Forbes.com, 17 Aug. 2025
It may have been mined somewhere on Earth in the not-too-distant past, but originally, it was molded in the heart of an expiring star—either a smaller one that had ballooned into a red giant or a giant crucible that ignited into a supernova.
—Robin George Andrews, Smithsonian Magazine, 30 May 2025
See All Example Sentences for red giant
Juliette Becker, The Conversation, 28 Aug. 2025
Webb’s data revealed an object, named NIR-1, which could be a massive star or a red giant — a sun-like star at the end of its life that has brightened significantly.
—Ashley Strickland, CNN Money, 26 Aug. 2025
The most obvious shape is Orion’s Belt — three stars (Alnitak, Alnilam and Mintaka) in a straight line —with red giant Betelgeuse roughly between the belt stars and Jupiter.
—Jamie Carter, Forbes.com, 17 Aug. 2025
It may have been mined somewhere on Earth in the not-too-distant past, but originally, it was molded in the heart of an expiring star—either a smaller one that had ballooned into a red giant or a giant crucible that ignited into a supernova.
—Robin George Andrews, Smithsonian Magazine, 30 May 2025
See All Example Sentences for red giant
Recent Examples of Synonyms for red giant
Noun
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The hypothesis was based on the taking of distance measurements to faraway galaxies using type 1a supernovae, stellar explosions that occur in twin star systems where one of the stars is a white dwarf.—
Ian Randall,
MSNBC Newsweek,
6 Nov. 2025
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Meanwhile, Type la supernovas occur when a white dwarf star undergoes a thermonuclear explosion, reaching nearly the same peak brightness each time.—
Kenna Hughes-Castleberry,
Space.com,
4 Nov. 2025
Noun
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First, locate the red star Betelgeuse using a smartphone astronomy app.—
Anthony Wood,
Space.com,
20 Oct. 2025
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The look of his No. 88 car has been overhauled, featuring the red cross, red stars, and silver ferns on a black backdrop.—
Saajan Jogia,
MSNBC Newsweek,
11 Oct. 2025
Noun
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Next, locate the highest point of light in the constellation — the binary star system Rasalhague — and its neighbor Kappa Ophiuchi to the lower right.—
Anthony Wood,
Space.com,
25 Oct. 2025
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Using artificial neutral networks, his tool allows astronomers to distinguish true binary star systems from chance alignments in massive data sets like the European Space Agency’s Gaia mission.—
Regina Elling,
San Diego Union-Tribune,
23 Sep. 2025
Noun
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As the collapsed core of a massive star, a neutron star is a small but incredibly dense object, packing up to three times the mass of our sun into a small volume.—
Keith Cooper,
Space.com,
24 Oct. 2025
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In the 10 years since then, scientists have detected hundreds of black holes coming together, as well as other extreme cosmic events like neutron stars colliding and black holes merging with a neutron star.—
Nell Greenfieldboyce,
NPR,
11 Sep. 2025
Noun
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North wind moving 5-8 mph will become light and variable after midnight.—
Lillian Metzmeier,
Louisville Courier Journal,
5 Nov. 2025
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For as much planning that goes into a stadium flip of this magnitude, after all — the weather is the variable that isn’t in Tepper Sports’ hands.—
Alex Zietlow,
Charlotte Observer,
28 Oct. 2025
Noun
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In another imaging campaign, API, assisted by AMIGO, was able to produce detailed images of a black hole jet, the volcanic surface of Jupiter's moon Io, and stellar winds emanating from a distant variable star.—
Tereza Pultarova,
Space.com,
5 Nov. 2025
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Many of these alerts will be triggered by variable stars, which cyclically change in brightness.—
IEEE Spectrum,
IEEE Spectrum,
23 June 2025
Noun
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The phosphine was identified in the cold atmosphere of a brown dwarf called Wolf 1130C, which exists in a triple system along with a low-mass red dwarf star and a white dwarf.—
Keith Cooper,
Space.com,
7 Oct. 2025
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The evolution of intelligent life around red dwarf stars is likely to be an uphill slog, due to the demands needed to jumpstart oxygenic photosynthesis.—
Bruce Dorminey,
Forbes.com,
15 Sep. 2025
Noun
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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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Recorded live at the Lincoln Center, the band plays a bossa-nova take on the song while Gaga sings solo, wearing one of Cher’s own wigs.—
Kristen S. Hé,
Vulture,
19 Mar. 2025
Cite this Entry
“Red giant.” Merriam-Webster.com Thesaurus, Merriam-Webster, https://www.merriam-webster.com/thesaurus/red%20giant. Accessed 9 Nov. 2025.
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