Over the weekend, I made some (hopefully mostly transparent) changes to the main website and old blog site after a weird file system meltdown at my (former) website hosting company. For some reason I was only able to edit backup versions of files, which doesn't help when trying to correct errors in HTML code that were sending some blog visitors to horrid error pages. And the "guaranteed 24-hour response" help team hadn't responded to two week's worth of queries. So, I quickly moved to a new hosting company, where hopefully things will work better. But if you received error messages this weekend, I apologize. That should be behind us now.
For those of you who haven't done so, please update your bookmarks to the "new" blog web address: blog.professorastronomy.com. You may also need to update your RSS feeds (if this post isn't in your news aggregator, you need to fix it). Use the links on the right side of the page. The old pages are both hosted here and on the old blog, and will exist there indefinitely, so any links you have will still work.