Dr. Shannon Lucid was the first woman to hold an international record for the most flight hours in orbit by any non-Russian, and until June 2007 she also held the record for the most flight hours in orbit by any woman in the world. In this March 1996 photo taken aboard the Base Block Module on Russia’s Mir Space Station, astronaut and cosmonaut guest researcher Shannon W. Lucid works out on a treadmill device.
Image Credit: NASA