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(Jon sez:)

Your Writer: Jon Kilgannon The volcanoes on Io are strange things, spewing out sulphur at a fairly low temperature (although still hot enough to kill), unlike the basalt lavas we're familiar with from Hawaii, Japan, Italy, or the other usual suspects here on Earth.

There are strange and wondrous volcanoes here, though. Natrocarbonatite volcanoes erupt with flows that are about as viscous as cooking oil and which are too cool to see glowing with the naked eye. The carbonatite lava beds left behind by a natrocarbonatite volcano quickly degrade in Earth's damp atmosphere, crumbling away.

This does eventually come back to A Miracle of Science. Natrocarbonatite is composed mostly of two minerals, one of which is called nyerereite. You may recognize the name of Benjamin's boss, Gustave Nyerere, in that mineral's name. Nyerereite is named for the same man Chief Nyerere is - Julius Nyerere, the first president of Tanzania.

(Mark sez:)

Your Artist: Mark Sachs It strikes me that I haven't used my picture of a frog in a while. Let's fix that.