ESA’s Sentinel-1A, ASI’s Cosmo-SkyMed and NASA’s MODIS missions tracked the movement of an iceberg as it drifted in a clockwise circle near the Prince Edward Islands (right) in December 2014. The iceberg was near sailor Matteo Miceli’s planned route (red) while on his ‘Roma Ocean World’ voyage. Instead, Matteo steered his vessel north of the islands (orange).