JWST kartlägger distinkta väderförhållanden på avlägsen het gasjätte

21 maj 2026

Rapporterad av AI

Astronomer har använt James Webb-teleskopet för att studera atmosfären på WASP-94A b, en tidvattenslåst gasjätte 690 ljusår bort. Observationerna avslöjade molniga morgnar och klara kvällar på planeten. Resultaten har publicerats i Science.

Ett team lett av Sagnick Mukherjee vid Johns Hopkins University använde randupplöst spektroskopi med JWST:s NIRISS-instrument. De separerade transmissionssignalerna från morgon- och kvällsranden under planetens passage, vilket blottade aerosoler på hög höjd på morgonsidan och vattenånga på kvällssidan.

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