The <a href="https://en.wikipedia.org/wiki/Soyuz_17" id="mwATU" rel="mw:WikiLink" title="Soyuz 17">Soyuz 17</a> <a href="https://en.wikipedia.org/wiki/Soviet_Union" id="mwATY" rel="mw:WikiLink" title="Soviet Union">Soviet</a> <a href="https://en.wikipedia.org/wiki/Spacecraft" id="mwATc" rel="mw:WikiLink" title="Spacecraft">spacecraft</a> returns to Earth.