Moon and Mars are the great undiscovered continents of our time, but they are within our reach.

ESA astronaut Alexander Gerst explains how teams are working with science and technology on board the International Space Station, and on Earth, to build an exciting future of space exploration. To Moon, Mars and beyond!

Follow Alexander and the Horizons mission on social media via http://alexandergerst.esa.int/ and on http://blogs.esa.int/alexander-gerst/.

Credits: ESA/NASA; Lunar Gateway photo: NASA.spaceflight.com N. Koga