<a href="https://en.wikipedia.org/wiki/Saturn" id="mwrA" rel="mw:WikiLink" title="Saturn">Saturn</a>'s moon <a href="https://en.wikipedia.org/wiki/Epimetheus_(moon)" id="mwrQ" rel="mw:WikiLink" title="Epimetheus (moon)">Epimetheus</a> is discovered by astronomer Richard Walker.