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NASA's SPHEREx Telescope Reveals Chemically Rich Atmospheres in Brown Dwarfs
SPHEREx's infrared survey detected water, CO₂, CO, and methane in brown dwarf atmospheres across 102 color bands in 37+ examples, with temperatures from ~2,200°C to –20°C. Findings challenge atmospheric models at L/T transitions.
TLDR
This fresh data from an active NASA mission expands our understanding of 'failed stars' and atmospheric chemistry, with direct implications for exoplanet and planetary science. The discovery of thousands more brown dwarfs requires refinement of existing models and provides new benchmarks for comparing planetary atmospheres across diverse temperature ranges.
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