ARLA/CLUSTER: STEVE: Um novo tipo de aurora, mas que afinal não é uma aurora geomagnetica

[João Costa > CT1FBF]

 A new type of aurora is not an aurora at all

For decades, amateur astronomers in Canada have been photographing a purple
ribbon of light dancing alongside auroras during some geomagnetic storms.

Nicknamed "STEVE", the ribbon belatedly caught the attention of the
scientific community in 2016. They thought it might be a form of aurora.

However, new research published yesterday in the Geophysical Research
Letters suggests that STEVE is not an aurora at all, but rather something
new and mysterious.

Read the full story on today's edition of Spaceweather.com
<https://spaceweather.us11.list-manage.com/track/click?u=0c5fce34d5ca05f64a13d085d&id=4cc35b0d3c&e=f98eeb7cd6>
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