"Calvin Barth Netterfield (born 29 April 1968), known as Barth Netterfield, is a Canadian astrophysicist, and a Professor in the Department of Astronomy and the Department of Physics at the University of Toronto. He is a leading expert in the development of balloon-borne telescopes. These are astrophysical experiments that are lifted into the stratosphere by high-altitude balloons where they conduct observations that would be hindered by atmospheric interference if done on the ground."@en . "Barth Netterfield"@en . . . "1968Z"^^ . . . . . . . "1968-04-29Z"^^ . "Canadian astronomer" . "Netterfield, Barth"@en .