Radiolab is a radio program broadcast on public radio stations in the United States and through a podcast available internationally, both produced by WNYC. Hosted by Latif Nasser and Lulu Miller, each episode delves into scientific and philosophical topics through stories, interviews, and thought experiments. Radiolab airs as a one-hour broadcast each week while its podcast releases new episodes of varying lengths usually biweekly. For a few years, the Radiolab podcast feed featured a full-hour episode every six weeks, announced by the hosts as Radiolab: The Podcast, interspersed with two shorter pieces known as "shorts." These shorter pieces were often combined into full episodes not found on the podcast feed but available on Radiolab's website. Recently, Radiolab has diversified its podcast format, combining these episodes and shorts into an airable compilation. The program is syndicated to over 450 NPR affiliates nationwide. Radiolab's first nine seasons (February 2002–April 2011) comprised five episodes each. Subsequent seasons contained between nine and ten episodes. Season 15 began airing in January 2017. In 2018, the show's seasonal and episode format became obscured when online content moved from radiolab.org to ‘wnycstudios.org’.

Before Season 1 (2002–2004)

Before the concept of a show featuring Jad Abumrad and Robert Krulwich emerged in November 2003, Abumrad produced radio documentaries featuring himself and others. Some of this material has been repackaged and broadcast under the Radiolab banner.

2002

2003

2004

Season 1 (2005)

Season 2 (2006)

Season 3 (2007)

Episodes during Season 3 and before Season 4 (2007–2008)

Season 4 (2008)

Episodes during Season 4 and before Season 5 (2008)

Season 5 (2008)

Episodes during Season 5 and before Season 6 (2009)

Season 6 (2009)

Episodes during Season 6 and before Season 7 (2009)

Season 7 (2010)

Episodes during Season 7 and before Season 8 (2010)

Season 8 (2010)

Episodes during Season 8 and before Season 9 (2010)

Season 9 (2010–2011)

Episodes during Season 9 and before Season 10 (2010–2011)

Season 10 (2011–2012)

Episodes during Season 10 and before Season 11 (2011–2012)

Season 11 (2012–2013)

Episodes during Season 11 and before Season 12 (2012–2013)

Season 12 (2013–2014)

Episodes during Season 12 and before Season 13 (2013–2014)

Season 13 (2014–2015)

Episodes during Season 13 and before Season 14 (2014–2015)

Season 14 (2015–2016)

Episodes during Season 14 and before Season 15 (2015–2016)

Season 15 (2017)

Episodes during Season 15 and before Season 16 (2017)

After Season 15 (2018– )

2018

2019

2020

2021

2022

2023

2024