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ϟ HEADLINESSupervolcanoes: what monitoring signals can predictA Luxembourg magazine Nov 11, 2026

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A geyser erupting amid Yellowstone’s hydrothermal formations

Basic science · Nov 10, 2026Supervolcanoes: what monitoring signals can predictEarthquakes, ground deformation and gas emissions help volcanologists monitor large volcanic systems. But detecting unusual activity is not the same as dating a super-eruption.

View of the Olympus Mons volcano and its caldera on Mars

Space · Nov 10, 2026Olympus Mons: how Mars built a giant volcanoOlympus Mons owes its immense size to the gradual construction of a shield volcano. Its measurements, caldera and frost observed by probes reveal three distinct aspects of this Martian feature.

The wooded terrain of the Suc de Bartou seen from Chamalières-sur-Loire.

Travel · Nov 8, 2026At the Suc de Bartou, a loop between the Loire and volcanic peaksFrom Chamalières-sur-Loire, the PR667 links the riverbanks with the heights of the Suc de Bartou. A 11.6-kilometre hike to plan according to the terrain and conditions, with another possible approach from Vorey.

Water jet from the degassing system at Lake Nyos, between rocky shores, with a floating platform.

Basic science · Nov 1, 2026Lake Nyos: how dissolved CO₂ caused the 1986 disasterIn Cameroon, Lake Nyos released a deadly cloud of CO₂ in August 1986. Understanding how the gas was stored at depth also explains how degassing systems work.