THIS PAGE: During a spacewalk outside the International Space Station on Aug. 22, 2019, astronaut Nick Hague debuted the Artemis program identity in space. Hague and fellow crewmember Andrew Morgan installed the second International Docking Adapter on the complex to enable commercial spacecraft from Boeing and SpaceX to carry astronauts to the station. NASA's Artemis lunar exploration program will send the first woman and the next man to the surface of the Moon within five years, and prepare for human exploration of Mars. LEFT: The waxing gibbous moon is pictured above Earth's limb as the International Space Station was orbiting 266 miles above the South Atlantic Ocean. Photos: NASA