During <a href="https://en.wikipedia.org/wiki/STS-6" id="mwAXM" rel="mw:WikiLink" title="STS-6">STS-6</a>, astronauts <a href="https://en.wikipedia.org/wiki/Story_Musgrave" id="mwAXQ" rel="mw:WikiLink" title="Story Musgrave">Story Musgrave</a> and <a href="https://en.wikipedia.org/wiki/Donald_H._Peterson" id="mwAXU" rel="mw:WikiLink" title="Donald H. Peterson">Don Peterson</a> perform the first <a href="https://en.wikipedia.org/wiki/Space_Shuttle" id="mwAXY" rel="mw:WikiLink" title="Space Shuttle">Space Shuttle</a> spacewalk.