WilliamSanfordNye[3](bornNovember27,1955),popularlyknownasBillNyetheScienceGuy,isanAmericansciencecommunicator,televisionpresenter,andmechanicalengineer.HeisbestknownasthehostofthePBSchildren'sscienceshowBillNyetheScienceGuy(1993–1998),theNetflixshowBillNyeSavestheWorld(2017–present),andforhismanysubsequentappearancesinpopularmediaasascienceeducator.