ice XI
... that ice XI, one of the fifteen known phases of ice, may be present on Pluto and Charon?
... that <b id="mwBAU"><a href="./Ice_XI" id="mwBAY" rel="mw:WikiLink" title="Ice XI">ice XI</a></b>, one of the fifteen known phases of ice, may be present on <a href="./Pluto" id="mwBAc" rel="mw:WikiLink" title="Pluto">Pluto</a> and <a href="./Charon_(moon)" id="mwBAg" rel="mw:WikiLink" title="Charon (moon)">Charon</a>?