2 Sep 2017: The longest domestic flight in the world, Moscow-Petropavlowsk (7-8 hours), is almost over as the plane is descending in brilliant weather to the airport: we pass south of the majestic stratovolcano of Koryaksky looming over the Avachinsky Bay where the capital is located. In the background, the Zhupanowsky volcano complex, and (far left corner), Karymsky volcano with a small plume are visible as well. (Photo: Tom Pfeiffer)