Horizon

ESA astronaut Alexander Gerst took this image from onboard the International Space Station. He posted it on social media ten days into his mission Horizons, commenting: "Horizon. Today first day off after some of the busiest 10 days in my life. I thought long about which should be my first photo from space. When I saw this sunrise, I immediately knew this would be it. What a fascinating planet."

Alexander Gerst is currently on his second mission to the International Space Station for Expeditions 56 and 57. The mission is part of ESA’s vision to use Earth-orbiting spacecraft as a place to live and work for the benefit of European society while using the experience to prepare for future voyages of exploration further into the Solar System.

Connect with Alexander Gerst: http://alexandergerst.esa.int/