<a href="https://en.wikipedia.org/wiki/Mariner_program" id="mwARg" rel="mw:WikiLink" title="Mariner program">Mariner program</a>: <a href="https://en.wikipedia.org/wiki/NASA" id="mwARk" rel="mw:WikiLink" title="NASA">NASA</a> launches the <a href="https://en.wikipedia.org/wiki/Mariner_4" id="mwARo" rel="mw:WikiLink" title="Mariner 4">Mariner 4</a> probe toward <a href="https://en.wikipedia.org/wiki/Mars" id="mwARs" rel="mw:WikiLink" title="Mars">Mars</a>.