We accidentally had two excursions this month. I'm not sure whether that makes us "caught up" due to not having one last month or able to chill next month given that the first and second months tend to be organisational and transitional.
The last time we went to the Gravity Discovery Centre was in 2010. Unfortunately stuff just didn't occur to J and I, for whatever reason I thought that we were only going for the night thing even though their night things always include entry into the rest of it, so I didn't cancel roleplaying, and J assumed we'd be roleplaying and didn't mention it. And it was unfortunate as the kids would have made the entire solar system walk now, before we only managed to get up to Uranus before we had to turn back.