Latest in our animation series answering your questions about ESA's Rosetta mission. In this video we answer the question: how was Philae's landing site chosen?

Scientists and engineers had to identify a site that offered a safe trajectory for Rosetta to deploy Philae to the surface, a good balance of day and night, frequent communications passes with the orbiter, and a low density of hazards like boulders and steep slopes.

For more information visit: www.esa.int/rosetta