A composite of images of the Sentinel-3 satellite of the European Space Agency's Copernicus programme, which will monitor Earth's oceans.

A Russian rocket has carried into orbit a satellite that is part of the European Space Agency's earth observation program.

The Sentinel-3B satellite blasted off Wednesday from the Plesetsk launch facility in northern Russia, said the Russian space agency Roscosmos.

The , part of the ESA's Copernicus program, is to measure oceans, land, ice and the Earth's atmosphere.