Question: What is the largest number of rockets launched into space from a given launch site in a 24 hour period? Where, when, why?

"into space" means $\ge$ 100 km, but pretty close to 100 km would still count. However a hobby rocket launch-a-thon topping out at a kilometer or two wouldn't.

Thus answers to Most busy times in US space launches? are not likely to cover this.

  • $\begingroup$ Related: space.stackexchange.com/q/45696/195 $\endgroup$ Commented Aug 13, 2021 at 3:20
  • $\begingroup$ Near dupe: space.stackexchange.com/a/45719/195 $\endgroup$ Commented Aug 13, 2021 at 3:21
  • $\begingroup$ @RussellBorogove at first it looks like it but those are all orbital launches. There may turn out to be a much more interesting event involving sounding rockets with a number much larger than single digits. So I've added a link to that question back in the post. Thanks! $\endgroup$
    – uhoh
    Commented Aug 13, 2021 at 3:36
  • $\begingroup$ Do you have a particular event in mind? $\endgroup$ Commented Aug 13, 2021 at 3:39
  • $\begingroup$ @RussellBorogove I'd read about one, but I can't track it down now. It seemed like a "launch-a-thon" for scientists. $\endgroup$
    – uhoh
    Commented Aug 13, 2021 at 3:40

1 Answer 1


I'm working my way through the past missions listed by the NASA Sounding Rockets Program Office, which has a few multiple launches, mostly doubles.

Standouts include:

  • $\begingroup$ I'll keep thinking about this also, trying to remember what I'd read or more importantly where I'd read it. $\endgroup$
    – uhoh
    Commented Aug 13, 2021 at 10:31
  • $\begingroup$ Ah, got it! Now that you mention Wallops; searching this site for wallops+sounding+rockets I found an answer that has a big number. It will need a bit more research to source it properly but I think it's what's needed. $\endgroup$
    – uhoh
    Commented Aug 13, 2021 at 18:32
  • 1
    $\begingroup$ Wow. That collection of rockets would pack quite a.... $\endgroup$ Commented Aug 13, 2021 at 20:32
  • $\begingroup$ Would you like to add that to your answer? It seems that if six or more reached space then it beats ATREX. $\endgroup$
    – uhoh
    Commented Aug 23, 2021 at 0:57

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