Scientistssaythereareaboutonebillioncarbonnanotubesin a squarecentimeterofVantaablack.
It's oneofthedarkestmanmadesubstancesinexistence.
Andthoughitwasoriginallydesignedtohelpwithspaceengineering, it's foundotherusesfromproviding a bottomlesslookingbackgroundon a $95,000 watchtocloaking a buildinginSouthKorea's 2018 WinterOlympicPark.