Full interview with ESA astronaut Alexander Gerst made for the ESTEC Open Day 2020 virtual edition. ESA Open Day at ESTEC in the Netherlands took place online in 2020. Continuing COVID-19 restrictions made it impossible to let people on site in person, but participants could still enjoy virtual tours of the extensive establishment, get unique close-up views of space hardware and interact directly with astronauts and space experts. For the ninth annual ESA Open Day at ESTEC, on Sunday 4 October, Arianna Ricchiuti in The Netherlands, interviewed Alexander Gerst at his home in Germany. Alexander recounts his time in space, talks about the environment, his expedition in Antarctica and more. The first 20 minutes of this interview were shown during the Open Day, but this video shows the full interview.