Science Friday (known as SciFri for short) is a weekly call-in talk show that broadcasts each Friday on public radio stations, distributed by WNYC Studios, and carried on over 500 public radio stations. SciFri is hosted by science journalist Ira Flatow and Flora Lichtman and is produced by the Science Friday Initiative. The program is divided into two one-hour programs, with each hour ending with a complete sign-off. The focus of each program is news and information on science, nature, medicine, and technology. The show originated as the Friday episode of the daily call-in talk show Talk of the Nation, but was spun off as a series in its own right when Talk of the Nation was canceled in June 2013. The Science Friday radio program is produced by the Science Friday Initiative, a 501(c)(3) organization. The Science Friday Initiative is an independently run organization with a governing board of directors and executive director. In addition to the radio program and podcasts, the organization creates educational and digital content, finds underwriting for the program, and hosts public science events. Science Friday is also available in a podcasting format and is one of the most popular iTunes downloads, frequently in the top 15 downloads each week. SciFri podcasts are downloaded ov... ()