The Coldest Known Y Dwarfs: Estimates of their Effective Temperatures
astrobiology.com/2026/03/the-... #astrobiology #exoplanet #browndwarf
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Hashtag
#BrownDwarf
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A Universal Brown Dwarf Desert Formed Between Planets And Stars
astrobiology.com/2026/03/a-un... #astrobiology #exoplanet #browndwarf
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Image of the NGC 2244 core in the Rosette Nebula captured by the James Webb Space Telescope (JWST). The image reveals a dense field of stars, including brown dwarfs and free-floating planetary-mass objects. The observation was made using the NIRCam instrument with filters: F115W, F335M, F150W-F162M, F140M, F182M, F144W, F360M, and F300M. This data is part of program #4545, led by Principal Investigator Mark McCaughrean. Credit: NASA/ESA/CSA/STScI/Jackie Branc.
1/2🧵 🔭🧪 4545 | NGC 2244 core #JWST
Brown dwarfs & free-floating planetary mass objects in the Rosette Nebula: imaging
2025-03-02
PI: Mark McCaughrean
NIRCam: F115W,F335M,F150W-F162M,F140M,F182M,F144W,F360M,F300M
Credit: #NASA/ #ESA/ #CSA/ #STScI/ Jackie Branc
#browndwarf #NGC2244 #Rosettenebula
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PICASO 4.0: Clouds And Photochemistry In Climate Models Of Brown Dwarfs And Exoplanets
astrobiology.com/2026/02/pica... #astrobiology #exoplanet #browndwarf
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Star vanishes for 200 days: ASASSN-24fw Cosmic Mystery Star vanishes for 200 days as a massive ringed brown dwarf eclipses the sun-like star ASASSN-24fw. This exceptionally rare alignment caused a ...
#Astrophysics #ASASSN24fw #Astronomy #BrownDwarf […]
[Original post on nasaspacenews.com]
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A mystery object is dimming the stable star ASASSN-24fw A mystery object is dimming ASASSN-24fw by 97%, according to recent findings. This celestial event, lasting 200 days, involves a massive ring...
#Research #ASASSN24fw #Astronomy #BrownDwarf […]
[Original post on nasaspacenews.com]
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Among other appointments, she's also the Chair Emeritus for SETI Research at the SETI Institute, an Adjunct Professor at USC and has Asteroid 74824 Tarter named after her.
Image from team member Mike.
#InternationalDayOfWomenAndGirlsInScience #jilltarter #WomenInSTEM #browndwarf #spaceengine
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Custom system art piece !
(it is not entirely to scale)
— #Browndwarf , #space , #Astronomy , #Art , #System
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Personifications of the Luhman 16 binary brown dwarfs. Both are depicted as pink banded objects where the poles are brighter and the equator is darker. Luhman 16 B is additionally depicted as stormy.
2023-08-16: Luhman 16 Siblings
#ACelestialJournal #art #gijinka #astronomy #space #browndwarf #Luhman16
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The object in the circle is the brown dwarf.
Ross 19B, a "cold" (127–342 °C; 260–647 °F) brown dwarf around a red dwarf. #browndwarf #reddwarfs #citsci
It was discovered by volunteers and astronomers of the project "backyard worlds". #JWST MIRI 🔭 image of Ross 19B (without the red dwarf). program: www.stsci.edu/jwst-program...
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Ayo, #browndwarf research people, I have a burning convection question i would love to run by yall 🙃
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An artist’s impression of weather on a brown dwarf, showing thick red and pink cloud layers and a bolt of lightning cutting through the storm.
Feeling under the weather🤧
But I can be grateful it's not *this* weather (an artist's rendition of weather on a brown dwarf)
📷 :https://images.nasa.gov/details/PIA21475
#astronomy #science #weather #BrownDwarf #NASA #AstroDon
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Toxic Gas on an Ancient Brown Dwarf Baffles Scientists #Science #Space #Astronomy #BrownDwarf #ToxicGas #AstronomyNews
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A Red Dwarf Star with a Brown Dwarf Companion is Changing our Perception of How Stars and Planets Form #Science #Space #Astronomy #RedDwarf #StarFormation #BrownDwarf
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Short wavelength view. A faint object in the center and some stars and background galaxies. Field of view is smaller for this image.
Longer wavelength image with the red object in the circle (upper right) being the brown dwarf. A medium-sized galaxy is on the left side.
A well-studied cold brown dwarf: WISE 1828+2650 with #JWST NIRCam (in the circle I did draw).
It is well-studied, but even with JWST it is still holding some secrets. Some results suggest it is a binary, other works find it to be single. #BrownDwarf
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Phosphine Discovered In A Brown Dwarf's Atmosphere For The First Time #Science #Space #Astrobiology #PhosphineDiscovery #BrownDwarf
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JWST Detects Phosphine on Brown Dwarf, Challenging Venus Life Claims
NASA's James Webb Space Telescope has detected phosphine gas on a brown dwarf, a finding that casts doubt on earlier claims of phosphine on Venus, in the data. Read more: getnews.me/jwst-detects-phosphine-o... #jwst #phosphine #browndwarf
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Scientists Finally Found Phosphine on a Brown Dwarf. Here's What That Means for the Search for Extraterrestrial Life: The detection could force astronomers to reconsider their chemical models @SmithsonianMag #Phosphine #BrownDwarf #ExtraterrestrialLife #Astrobiology #SpaceScience
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#Scientists Finally Found #Phosphine on a #BrownDwarf Here's What That Means for the Search for #ExtraterrestrialLife - Smithsonian Magazine
apple.news/AhySUdBTTSju...
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Phosphine is a toxic gas found in the atmospheres of Jupiter and Saturn. It has been recognized as a possible biosignature for anaerobic life. Now a team of researchers, led by UC San Diego's Adam Burgasser, has reported the detection of phosphine on an ancient #BrownDwarf. https://bit.ly/4o5LyoJ
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James Webb Telescope Maps Weather on Rogue Brown Dwarf SIMP‑0136
JWST mapped weather on rogue brown dwarf SIMP‑0136, finding an upper‑atmosphere layer up to 570 °F hotter than models and a rapid 2.5‑hour rotation. Results announced Sep 26 2025. Read more: getnews.me/james-webb-telescope-map... #jameswebb #browndwarf
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Brown Dwarf “The Accident” Shows Silane in Giant Planet Atmospheres
JWST has detected silane at 4.55 µm in the brown dwarf “The Accident”, measuring about 19 ppb; the object is estimated to be 10–12 billion years old. This validates predictions. Read more: getnews.me/brown-dwarf-the-accident... #silane #browndwarf #jwst
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The Mystery of the CMB Cold Spot: A Portal to a Parallel Universe? theblogofscience.com/evidence-for...
#Astronomy
#SpaceDiscovery
#CosmicPhenomena
#PlanetaryScience
#SpaceExploration
#Astrophysics
#Universe
#Cosmos
#NASA
#SpaceTelescope
#Atmosphere
#Aurora
#BrownDwarf
#Exoplanet
#JamesWebb
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The Moon Is Rusting – And Earth's Oxygen Might Be to Blame theblogofscience.com/the-moon-is-...
#Astronomy
#SpaceDiscovery
#CosmicPhenomena
#PlanetaryScience
#SpaceExploration
#Astrophysics
#Universe
#Cosmos
#NASA
#SpaceTelescope
#Atmosphere
#Aurora
#BrownDwarf
#Exoplanet
#JamesWebb
#Magnetic
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Rogue Planet SIMP-0136: Auroral Storms and 1,500°C Heat theblogofscience.com/rogue-planet...
#Astronomy
#SpaceDiscovery
#CosmicPhenomena
#PlanetaryScience
#SpaceExploration
#Astrophysics
#Universe
#Cosmos
#NASA
#SpaceTelescope
#Atmosphere
#Aurora
#BrownDwarf
#Exoplanet
#JamesWebb
#MagneticField
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Silane Found in Ancient Brown Dwarf Reveals Giant Planet Chemistry
JWST detects silane (SiH4) in the ancient brown dwarf “The Accident,” about 50 light‑years away and 10‑12 billion years old, shedding light on giant‑planet chemistry. Read more: getnews.me/silane-found-in-ancient-... #silane #browndwarf #giantplanets
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Ancient Brown Dwarf Reveals Missing Silicon Mystery in Giant Planets #Science #Space #Exoplanets #BrownDwarf #GiantPlanets #SiliconMystery
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JWST Finds Chemically Rich Planet-Forming Disk Around Brown Dwarf
NASA's JWST using MIRI observed the brown dwarf Cha Hα 1 in August 2022, detecting a planet‑forming disk rich in methane, acetylene, benzene, water and large silicate grains. getnews.me/jwst-finds-chemically-ri... #jwst #browndwarf
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