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Moon Scouts (ESA – A. Romeo)

Three astronauts from three space agencies are at work looking for interesting rocks at the rim of a volcanic crater in Lanzarote, Spain, on this photo from ESA’s geology course PANGAEA.

From left to right, NASA astronaut candidate Jessica WittnerTakuya Onishi from Japan’s space agency JAXA and ESA astronaut Thomas Pesquet document samples during a simulated expedition on another planetary body.

The crew stands at the top of an ancient volcano called Caldera Blanca. The remnants of magma eruptions from hundreds of thousands of years ago helped the astronauts in the search for samples from the Earth’s interior.

Read more at the ESA website or at PANGAEA blog.