ARLA/CLUSTER: Um grande buraco na atmosfera do Sol

[João Costa > CT1FBF]

A big hole in the sun's atmosphere

At the end of October, a hole in the sun's atmosphere lashed Earth's
magnetic field with solar wind, sparking moderately-strong geomagnetic
storms and almost a full week of Arctic auroras.

News flash:  It's back. The same "coronal hole" is turning toward
Earth again. Forecasters expect the solar wind to reach Earth during
the late hours of Nov. 22nd with minor G1-class geomagnetic storms
possible on Nov. 23rd.

Visit Spaceweather.com for more information and updates.