On an isolated, cold brown dwarf 47 light-years away, the James Webb Space Telescope (JWST) picked up the signs of methane. But while the gas isn’t unusual on the gigantic worlds, JWST detected emission from the methane, rather than the usual absorption. Now, researchers think the emission may come from the glowing curtain of anContinue reading "JWST detects possible aurora on distant brown dwarf"
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