In response to today being pi day (also see http://www.piday.org/), NASA has published it's fifth annual pi in the sky day 5 activity set (see also NASA goes the distance and Celebrate Pi Day with NASA).
I've asked about a more challenging pi-based question from NASA here, but this one is more Space SE-based.
- When will the Starman/Roadster spacecraft have traveled around the Sun by pi radians?
- When will it reach pi radians with respect to Earth as seen from the Sun (Solar conjunction as seen from Earth)?
- Will each of these happen before, on, or after next year's pi day?