Our Island Universe The Sun WMRA | By Shanil Virani Published November 4, 2016 at 5:00 AM EDT Facebook Twitter LinkedIn Email Listen • 2:07 NASA Goddard Space Flight Center On this episode of Our Island Universe: How do we know that the sun is made of Hydrogen and Helium?Shanil Virani, Director of the John C. Wells Planetarium in Harrisonburg, VA.Follow on Twitter as shanilv