There has been a lot of excitement about Rosetta and Philae lately, but what are they and why are they so interesting?
What are Rosetta and Philae?
Rosetta is a spacecraft built by the European Space Agency; its primary objective is to help understand the origins and evolution of our solar system. In order to do this it has spent the last decade travelling into deep space so that it can rendezvous with a comet. Philae is the lander that has descended to the surface of the comet in order to take measurements and readings.
