In the International Space Station's Harmony node, European Space Agency astronaut Alexander Gerst, Expedition 40 flight engineer, performs an eye exam for the Ocular Health experiment which observes and seeks to understand vision changes during long-term space missions.
Information
Taken in
Space
Author
NASA
Description
In the International Space Station's Harmony node, European Space Agency astronaut Alexander Gerst, Expedition 40 flight engineer, performs an eye exam for the Ocular Health experiment which observes and seeks to understand vision changes during long-term space missions.