Indeed, the Blizzards were created for the fillers and never shown up in the manga. As for the NASA, they are a cannon team, the first mention of them is in chapter 37 (volume 5), and the beginning of the arc involving them is chapter 54 (volume 7).
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Indeed, the Blizzards were created for the fillers and never shown up in the manga. As for the NASA, they are a cannon team, the first mention of them is in chapter 37 (volume 5), and the beginning of the arc involving them is chapter 54 (volume 7).