Now begins our seventeenth topic challenge!


Dates: 28 September - 12 October

Proposed by:

We've seen a lot of questions here about planets and the people on them, but the existence or nonexistence of moons is also a very important factor to the planet, influencing factors such as tides.

Remember to use this tag if you're asking a question as part of the challenge.

In two weeks, we'll announce the stats for users who asked and answered questions using the tag. If you have questions, see the original post or ask in chat.

Propose new topics here: What should be the subjects of our fortnightly topic challenges?

  • 6
    $\begingroup$ I'm tempted to ask a question under this tag about the Death Star. Just to see what people say. $\endgroup$ Sep 28, 2015 at 13:53
  • 2
    $\begingroup$ @DaaaahWhoosh Your question is not about [moons] voting to close as off topic =P $\endgroup$
    – Culyx
    Sep 28, 2015 at 16:26
  • 2
    $\begingroup$ @DaaaahWhoosh - in that case, one might ask about the effects of having a plumber in one's house bending down and exposing his backside. $\endgroup$
    – Mikey
    Sep 28, 2015 at 20:43
  • 1
    $\begingroup$ @Culyx suggest migration to SpaceStations.SE? $\endgroup$ Oct 8, 2015 at 8:24

1 Answer 1


This challenge generated 32 questions and 100 answers, for an average of 3.13 answers per question.


  • 1
    $\begingroup$ Wow, I did not expect to get second place. That said, there still aren't many answers to that question that satisfy the hard-science tag. Either way, this challenge was a lot more interesting than I thought it was going to be. $\endgroup$ Oct 12, 2015 at 13:59

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