This appears to be very much like Yahoo Mail's "Temporary email addresses". There, you choose a single prefix (that's different from your primary address) that is followed by a dash and anything you choose, followed by @yahoo.com. E.g. myprefix-xxx@yahoo.com. You can have multiple addresses each with a different string in place of the xxx. Mail for all of these aliases is sent to your normal inbox but you can filter them to different folders if you wish.

If you start to get spam on one of these addresses, you can delete that address (and create a different one in it's place, if you wish). The unique address might also give a clue about how it became used for spam.

From an official NASA tweet: "That deployment was executed automatically after rocket separation, based on a stored command to deploy either when Webb reached a certain attitude toward the Sun or automatically at 33 min. after launch."

The article quoted said "The array was coded to automatically deploy either when the observatory reached a certain altitude or 33 minutes after launch, whichever came first". That should be "attitude" (facing the Sun) not "altitude" (distance from Earth).

My most vivid memory of the machine at the Ontario Science Centre was a discovery that me and my friends made during a school trip. If you rubbed your feet on the carpet then touched the machine's speaker, the static charge would trigger it without having to push the button.

Unlike doing it the "proper" way, this method allowed a re-trigger in mid speech. By having more than one person trigger the machine rapidly in succession using static, we got a good laugh hearing it stutter "co-co-coff-coffee".