A Huge Solar Filament Erupts . ... Credit Copyright: NASA 's GSFC , SDO AIA Team Explanation: Click the arrow and watch an unusually long filament explode out from the Sun. The filament had been seen hovering over the Sun's surface for over a week before it erupted earlier this month. ... The above eruption and an unusually expansive eruption that occurred in August are showing how widely separated areas of the Sun can sometimes act in unison. ... A service of: LHEA at NASA / GSFC . ...