We’re not alone in the universe, ex-ESA director tells RT

In the wake of the 60th anniversary of Gagarin's first-ever foray into outer space, RT speaks to the former director general of the European Space Agency, Johann-Dietrich 'Jan' Wörner, about how the landmark flight paved the way not only for Mars exploration, but extra-terrestrial pursuits. Follow us on Telegram https://t.me/rtintl / https://t.me/rtvisual