A team of 21st-century explorers working on the Hunt for Exomoons with Kepler (HEK) project, based at Harvard University, are searching for exomoons using data from NASA's Kepler mission and the Pleiades supercomputer at the NASA Advanced Supercomputing (NAS) facility at NASA's Ames Research Center.

The discovery of exomoons—moons situated beyond our own solar system—would add to the growing list of celestial objects detected by the Kepler telescope that could potentially harbor life in some form.

Is that picture from Celestia?