Brown dwarf research is a subfield of astrophysics focused on objects with masses between the heaviest gas giant planets and the lightest stars, insufficient to sustain stable hydrogen fusion. This research area investigates their formation pathways, atmospheric chemistry and dynamics, internal structure, cooling and evolutionary tracks, and spectral classification (e.g., L, T, and Y types). It leverages multiwavelength observations, high-resolution spectroscopy, and theoretical modeling to constrain substellar mass functions, metallicities, cloud physics, and magnetic activity, and to calibrate brown dwarfs as analogs for exoplanet atmospheres and as benchmarks for testing low-temperature equation-of-state and radiative-transfer models.
Astronomers from the Harvard-Smithsonian Center for Astrophysics (CfA) and elsewhere report the discovery of a new brown dwarf about 60 times more massive than Jupiter. The newfound substellar object, designated TOI-7019 ...
Astronomers from the University of Hawai'i (UH) at Manoa and elsewhere have observed the Taurus star-forming region, which resulted in the discovery of planetary-mass and stellar companions of two ultracool dwarf stars. The ...
Astronomers using the Subaru Telescope in Hawaiʻi have discovered a massive planet and a brown dwarf orbiting distant stars. The discoveries are the first results from OASIS (Observing Accelerators with SCExAO Imaging Survey), ...
Astronomy
Dec 4, 2025
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Using images from the James Webb Space Telescope (Webb), an international research team including Western's Stanimir Metchev has discovered new answers to explain how some brown dwarfs form giant dust storms, contradicting ...
Astronomy
Dec 1, 2025
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Researchers at McGill University and collaborating institutions have mapped the atmospheric features of a planetary-mass brown dwarf, a type of space object that is neither a star nor a planet, existing in a category in-between. ...
Astronomy
Nov 7, 2025
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By combining the power of ground-based and space-based telescopes, astronomers have discovered a new brown dwarf—a type of object that lies between a star and a planet—orbiting a small star about 55 light-years from Earth. ...
Astronomy
Oct 21, 2025
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Phosphine has caused quite a stir in the astronomical world lately. That was largely due to its (still hotly debated) detection in the atmosphere of Venus. While the only known way for phosphine to be created on terrestrial ...
Astrobiology
Oct 13, 2025
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Brown dwarfs: too small to be stars, too big to be planets.
Astrobiology
Oct 3, 2025
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Phosphorus is one of six key elements necessary for life on Earth. When combined with hydrogen, phosphorus forms the molecule phosphine (PH3), an explosive, highly toxic gas.
Astrobiology
Oct 2, 2025
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85
Deep in space, an ancient brown dwarf nicknamed "The Accident" has revealed the first-ever detection of a molecule that scientists have been searching for in planetary atmospheres for decades.
Planetary Sciences
Sep 16, 2025
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