Rosetta: the end is in sight

It is just over two years since Rosetta made its rendezvous with comet 67P/Churyumov-Gerasimenko and now the end of the mission is in sight.  As the spacecraft and the comet head towards Jupiter, Rosetta is getting spectacularly close to the surface - up to three kilometres so far - allowing detailed views of the comet’s cliffs, boulders and plains, as well observing changes since the orbiter’s arrival.