Villarrica volcano as seen at night from Pucón, Chile (photo by Ivan Alvarado).

For cool white aficionados, there’s nothing like the beautiful blue glow of ionizing radiation :


(chernobyl mini-series :cry: )

> ionizing

Huff enough of that air to accumulate some of the escaping tritium and you’d glow for years

So for the volcano picture, any info on camera settings? The longer the exposure the more star-streaks it’d record.

Don’t read me wrong, i understood a long exposure was at work and that it’s not what you would see in person. However the exposure was not that long either since the fastest drifting stars did not draw very long lines - left of the image. Hence this caldera must have been emitting a good amount of light… Probably raw boiling magma in good quantities. Well, that’s how i imagine it works. :wink: