Dear Clockfags, UK anon here. I posted this yesterday in General. The baker notabled it on his own.
Not telling you what to dig, but just leaving this here for you. It is quite timely as the first space shuttle, STS-1, launched on 12APR1981, 40 years ago.
Q post 2679 linked to the NASA website re COUNTDOWN and I found this NASA post dated 5APR2021. In the article they mention a computer software problem which was resolved, after which Columbia STS-1 launched on 12APRIL, which is tomorrow. Cheers fam.
https://www.nasa.gov/feature/40-years-ago-the-countdown-begins-for-sts-1-first-launch-attempt-scrubbed
I think there was that Q pic of the Columbia also but can't recall atm.