Vantablack
... that Vantablack, a material made from carbon nanotubes, is the blackest substance known?
... that <b id="mwBAQ"><a href="./Vantablack" id="mwBAU" rel="mw:WikiLink" title="Vantablack">Vantablack</a></b>, a material made from <a class="mw-redirect" href="./Carbon_nanotubes" id="mwBAY" rel="mw:WikiLink" title="Carbon nanotubes">carbon nanotubes</a>, is the blackest substance known?