It was 30 years ago today that Sally Ride became the first American woman to fly in space.
At the time, it was not known that she was also the first lesbian to do so.
It was on 18 June, 1983 that Ride was on the space shuttle Challenger. She also flew on Challenger in 1984.
'I never went into physics or the astronaut corps to become a role model,' Ride told The Harvard Business Review shortly before her death last year. 'But after my first flight, it became clear to me that I was one. And I began to understand the importance of that to people.'