NASA Images from Etna and Kliuchevskoi (and more)

Yes, a rare Sunday post, mostly because I'm not sure I'll have a time tomorrow morning for a post as it will be the first day of the new semester at Denison ~ I'm sure I will have students breaking down my door with questions/requests/demands and all the great stuff that comes with the start of the semester. Actually, the start of the semester isn't that bad, it does mean work will be picking up again, but at least you enter with a bunch of new students.