This was an
Astro Pic of the Day a few days ago. I can't get enough of images the sun doing crazy things. This solar filament is, like the solar promience we had a while back, a kind of gaseous solar eruption.
The APOD says
"The filament, although small compared to the overall size of the Sun, measures over 100,000 kilometers in height, so that the entire Earth could easily fit into its outstretched arms." I don't know whether that's true, just reporting what they say in the caption.