IRrelevant Astronomy is a web series produced by NASA's Spitzer Space Telescope. Each episode explains a general science concept or reveals science news relevant to Spitzer. The "IR" in the title stands for "infrared", making the title refer to "infrared-relevant astronomy." The first episode launched on January 15, 2008, on the Spitzer Space Telescope website.

Tim Pyle - director/co-creator/writer/animator/music composer/producer (2008–present) - Tim worked for 10 years as an animator in the visual effects industry, including on the cult-favorite Invader Zim. Other projects include the Academy Award-nominated Jimmy Neutron, Emmy-nominated series Starship Troopers: the Series, and the Emmy-winning Children of Dune. He has personally won two Aegis Awards, a Telly Award, a CINE Golden Eagle, and 2006 & 2008 NASA awards for producing CG animation. He was the writer and director of Decaying Orbit, a sci-fi DVD feature.

Kenneth Kolb - producer (2009–present) - Kenneth worked 10 years with the Walt Disney Company including Buena Vista Pictures Distribution, and as a coordinator for the Disney Channel. He has worked as the CFO of the Kendrea International Corporation for the past five years, produced several indie short films, and also currently works as a producer for Hogofilm, where he assisted with the production of the feature film Decaying Orbit. He began co-producing IRrelevant Astronomy starting with the episodes released in April 2009.

Dr. Carolyn Brinkworth - science writer (2013–present) - Carolyn is a professional astronomer and educator. She graduated from the University of Southampton (U.K.) with her PhD in astrophysics in 2005, and moved to Caltech, where she now works as the Education and Outreach Scientist for a number of NASA missions. She has been involved in education and public outreach for 15 years, since working at the U.K.‘s National Space Center in Leicester as an undergraduate, and is now studying for her MA in education from Claremont Graduate University. In her spare time, Carolyn volunteers with The Trevor Project.

Jim Keller - co-creator/writer/producer (2008-2009, 2013) - Jim is a member of the Screen Actors Guild, AFTRA, and the Actors' Equity Association, having appeared in shows like Days of our Lives and Melrose Place. His work on NASA's Ask an Astronomer video podcast series has won a Silver Telly Award, a Bronze Telly Award, an Aegis Award, and two Aegis Finalists. Additional awards include an Aegis Award and a CINE Golden Eagle.

Austin Wintory - music composer (2008-2009) - Austin is a music composer for film, TV, and video games. He composed the score for Captain Abu Raed, a multiple award-winning film including the World Cinema Audience Award at the Sundance Film Festival in 2008. The film has been submitted by the Kingdom of Jordan for a 2009 Foreign Language Oscar. Austin also composed the score to Sony's Flow video game and expansion packs for the Sony PlayStation 3 & PSP, which earned strong reviews for the quality of music.

Ask an Astronomer: (25 episodes) Videos explaining basic and complex astronomy concepts in a simple way. Some episodes feature Dr. Michelle Thaller.

Ask an Astronomy Brain Parasite: (1 episode) Deep inside an astronomer's head, a parasite taps into his brain to learn about science.