Beneath the pack ice of the Arctic Ocean, which is usually only a few meters thick, lies a still relatively unknown world at a depth of several thousand meters. Research cruises help to explore these areas. Image: Dr Michael Wenger One often hears that the polar...
The Cassini spacecraft has been studying the planet Saturn and its moons since it entered orbit in 2004. This image of Saturn’s moon Enceladus, taken on October 5, 2008, is a stunning mosaic of geologically active Enceladus after a Cassini flyby. (Photo: NASA /...