Why is T-20 popular right now?

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20 minutes before the launch of a NASA rocket. (as of February 8 at 08:30 UTC)
Category: Unspecified | Most recent: April 5 at 09:55 UTC | First appearance: February 8 at 08:25 UTC | Last defined: February 8 at 08:30 UTC by @Clarisza via web | Source: Twitter | Permalink
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