Just two weeks after launch, the latest Sentinel satellite has offered a taster of what it will provide for the EU's Copernicus programme.
Sentinel-3A's very first image, captured at 14:09 GMT on 29 February, shows the transition from day to night over Svalbard, Norway.
As well as showing the snow-covered archipelago, the image also details Arctic sea ice and some cloud features.
Another image delivered on the same day shows California, USA. It also captures Los Angeles, which coincidentally is where the International Ocean Colour Coordinating Group Meeting is taking place.
The following day, one of the images shows Spain, Portugal, the Strait of Gibraltar and North Africa.
These images were captured by its ocean and land colour instrument, OLCI. With heritage from Envisat, this new instrument has 21 spectral bands, a resolution of 300 m and a swath width of 1270 km.
