“An operation as huge as the Moon landing”
— The small robot Philae left its mothership Rosetta and landed on the back of the comet Chury, 500 million kilometers away from Earth. Although there are still uncertainties about its anchorage, the achievement is a major leap forward for science. Grégoire Bourban, space engineer and Deputy Director of the EPFL Swiss Space Center, shares his expert viewpoint on the event.