The Geysers of Enceladus

Geysers of Enceladus. Photo courtesy NASA JPL. https://www.jpl.nasa.gov/news/news.php?feature=4755

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MALY SEMYACHIK (🇷🇺) & A glimpse at PHOTOGRAMMETRY

View to the W in a helicopter overflight of Maly Semyachik, with an old eroded cone of another volcano of this caldera in the background. (Img. via Twitter by “@ГК РФ(🇷🇺)в Женеве” Oct. 16, 2017)

Kamchatka is one of the most remote parts of the world with difficult access to most of its volcanoes. And yet, there are detailed maps available, and many of the volcanoes are researched well. Have you ever wondered how on earth volcanologists figure out the volume of a crater lake or the size of

Nyiragongo and Nyamuragira Volcanoes, Congo

Satellite photo of adjoining volcanic fields, Goma and Lake Kivu. Photo courtesy Photovolcanica. http://www.photovolcanica.com/VolcanoInfo/Nyiragongo/Nyiragongo.html