How to Use brown dwarf in a Sentence

brown dwarf

noun
  • In the case of brown dwarfs, though, that shine is pretty faint.
    — Phil Plait, Scientific American, 19 Jan. 2024
  • An artist's conception of what a brown dwarf might look like.
    — Nathaniel Scharping, Discover Magazine, 28 Nov. 2022
  • In the case of brown dwarfs, though, that shine is pretty feeble.
    — Phil Plait, Scientific American, 19 Jan. 2024
  • Anything between those bounds, then, should be a brown dwarf.
    — Nola Taylor Redd, Scientific American, 20 Apr. 2018
  • In this case, the brown dwarf is 10 times less massive than the dense white dwarf.
    — Ashley Strickland, CNN, 24 Jan. 2020
  • This means one of the brown dwarfs eclipses the other, as seen from our vantage point on Earth.
    — Robert Lea, Space.com, 16 Apr. 2025
  • Look through images of space and point out potential brown dwarfs near Earth.
    — Scistarter Team, Discover Magazine, 27 Dec. 2023
  • On the opposite end of the brown dwarf mass scale lies the Accident.
    — Jonathan O'Callaghan, Wired, 8 Aug. 2021
  • On the opposite end of the brown dwarf mass scale lies the Accident.
    — Quanta Magazine, 5 Aug. 2021
  • These cool brown dwarfs can be spotted in telescope images of the night sky, and astronomers need your help to do it.
    — Scistarter Team, Discover Magazine, 27 Dec. 2023
  • What's the difference between a giant planet and a brown dwarf?
    — David Grossman, Popular Mechanics, 24 Jan. 2018
  • The dividing line between brown dwarfs and massive gas giant planets is a blurred one in terms of mass.
    — Robert Lea, Space.com, 13 Feb. 2026
  • Astronomers believe that this nebula is filled with dim stellar bodies called brown dwarfs.
    — Robert Lea, Space.com, 6 Mar. 2026
  • As expected with these diminutive masses, brown dwarfs are rarely found in binaries.
    — Robert Lea, Space.com, 24 Dec. 2024
  • Three teams have identified a dozen or so brown dwarfs between three and eight Jupiter masses—and no smaller.
    — Byadam Mann, science.org, 6 Nov. 2024
  • At Hunter, Alam began working with researchers studying brown dwarfs.
    — Gary Strauss, National Geographic, 21 Oct. 2016
  • In general, middling objects too massive to be planets but too lightweight to be stars are called brown dwarfs.
    — Phil Plait, Scientific American, 10 Apr. 2025
  • In contrast, stars, including brown dwarfs, form on their own within giant collapsing clouds of gas.
    — Byadam Mann, science.org, 6 Nov. 2024
  • On the matter of planet or brown dwarf, Stefánsson's team remain open-minded.
    — Keith Cooper, Space.com, 5 Feb. 2025
  • Either that, or these brown dwarfs will collide and merge, birthing an entirely new star with enough mass to trigger nuclear fusion.
    — Robert Lea, Space.com, 23 Mar. 2026
  • And Allers has figured out how to measure wind speed on a brown dwarf (2,300 kilometers per hour).
    — Laura Helmuth, Scientific American, 19 July 2021
  • The article also says the brown dwarf is about 47 light-years away, which is much farther than the 7 trillion miles claimed in the video.
    — Hannah Hudnall, USA TODAY, 10 May 2024
  • The article also says the brown dwarf is about 47 light-years away, which is much farther than the 7 trillion miles claimed in the video.
    — Hannah Hudnall, USA TODAY, 10 May 2024
  • Water-vapor clouds have been found before in brown dwarfs, hulking objects that hover on the border between planet and star.
    — Michael Greshko, National Geographic, 11 Sep. 2019
  • While stars of all colors and masses — from blue giants to red dwarfs — will burn through their fuel and die, the brown dwarfs of the Universe will persist.
    — Big Think, 20 Feb. 2026
  • Analyzing a ‘failed star’ Astronomers don’t fully understand how brown dwarfs are formed.
    — Chris Young, Interesting Engineering, 1 Oct. 2025
  • This is the first mass transfer process seen in a brown dwarf pairing, but the team believes there could be many more brown dwarf pairings such as this just waiting to be uncovered.
    — Robert Lea, Space.com, 23 Mar. 2026
  • If confirmed in other systems, the finding could force astronomers to rethink where — and how — the line between giant planets and brown dwarfs is drawn.
    — Samantha Mathewson, Space.com, 10 Feb. 2026
  • This graphic compares a Sun-like star with a red dwarf, a typical brown dwarf, an ultra-cool brown dwarf, and a planet like Jupiter.
    — Big Think, 13 Jan. 2025
  • Webb is an ideal tool for such a search because the smallest stars—brown dwarfs, which emit light from the fusion of deuterium—are most visible in infrared light.
    — Eric Berger, Ars Technica, 14 Dec. 2023

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