史匹哲太空望遠鏡
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.