Atlantis: The Last Shuttle Launch
Space shuttle Atlantis lifted off from Launch Pad 39A at NASA's Kennedy Space Center in Florida at 11:29 a.m. EDT, July 8, 2011 on the STS-135 mission and final flight of the Space Shuttle Program. Atlantis' final flight will cap off an amazing 30-year program of exploration, which launched great observatories, built an International Space Station, and taught us how humans can live, work and thrive in space.
I had been unaware of the date, though I knew the last mission was coming up. An email from Kyle Hassler asked whether I was going to post the GCP network response. Being a fan, I agreed it was a good idea.
The GCP event was set for the period from 11:00 to 15:00 local time ET (15:00 to 19:00 UTC). The result is Chisquare 14600.319 on 14400 df, for p = 0.119 and Z = 1.179. The time of the launch is marked in the graph below.
It is important to keep in mind that we have only a tiny statistical effect, so that it is always hard to distinguish signal from noise. This means that every "success" might be largely driven by chance, and every "null" might include a real signal overwhelmed by noise. In the long run, a real effect can be identified only by patiently accumulating replications of similar analyses.