Proba-2 shows solar eruption that touched Earth
Wednesday, April 14, 2010 - 07:14
in Astronomy & Space
Polar skies glowed with ghostly auroras last week during the biggest geomagnetic storm of 2010. The event owed its origin to a solar eruption a few days earlier – revealed here in high-speed detail by ESA’s small Sun-watcher Proba-2.