Geoflow data from the International Space Station

Geoflow data from the International Space Station showing how a liquid between two revolving concentric spheres moves as the temperature between the outer and inner sphere changes.

ESA astronaut André Kuipers is running experiments on the International Space Station that are shedding light on conditions deep inside Earth. Orbiting some 400 km above us, Geoflow is offering insights into the inner workings of our planet.

ESA sponsored the development of an experiment that mimics the geometry of a planet. Called Geoflow, it contains two revolving concentric spheres with a liquid between them.

The inner sphere represents Earth’s core, with the outer sphere acting as the crust. The liquid, of course, is the mantle.

Read more about Geoflow on the ESA Portal