Auroras vermelhas atingem alturas extremas sobre o Japão

Pesquisadores descobriram que auroras vermelhas tênues, visíveis a partir do Japão, podem se estender muito mais alto na atmosfera do que se pensava anteriormente, mesmo durante tempestades solares moderadas.

Um estudo da Universidade de Hokkaido e do Instituto de Ciência e Tecnologia de Okinawa mediu as auroras em altitudes de 500 a 800 quilômetros. As descobertas vêm de observações de cinco eventos registrados em Hokkaido entre junho de 2024 e março de 2025. Cientistas combinaram dados de satélite com imagens feitas por observadores cidadãos para mapear as estruturas ao longo das linhas do campo magnético.

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