ARLA/CLUSTER: Surpresa no aparecimento de manchas solares

[João Costa > CT1FBF]

Sunspot surprise

Barely visible only 24 hours ago, a new sunspot group big enough to
swallow Earth is bubbling up through the solar surface.

So far the active region poses no threat for strong solar flares, but
this could change if its rapid growth continues.

Visit today's edition of Spaceweather.com to view a movie of sunspot
genesis, and to learn how this development fits in with the recent
"crash" of the sunspot cycle.