Sun spits filaments out from 'canyon of fire' as aurora forecast remains strong - Livescience.com

The solar filament is at least 12,400 miles (20,000 kilometers) deep and 10 times as long.

Filaments of plasma escaped from a fiery canyon that opened on the sun's surface on Sunday (April 3) releasing powerful streams of magnetized solar wind (opens in new tab) that might bring more aur… [+2996 chars]

full article...