Sorry for the infrequent posts the last few weeks. Many of us have been on travel. I also had a move, a new job for my spouse, and had a huge project in June that is just wrapping up. Oh, and there have been budget issues. Thus, no Countdowns, which had been the mechanism I had envisioned for keeping up regular content when we’re all busy. But most of that is behind us now, and we’ll be posting more stuff in the future, including some thoughts on climate change and on the retirement of the shuttle.