There definitely seems to be something strange going on during spaceflight beyond just the ambient air temperature. It would be interesting to see measurements of the ambient air on the days of the experiment to see how strong the correlation between the increases and decreases are. The variability of average temperature in space was +- 1.8 degrees, while the earth measurements were +- 1.2 degrees. It is confusing why the temperature CBT would only increase for the first 75 days and then drop off...I hope to see some follow up studies on this topic that might help to answer all of these remaining questions!