Folks-- I have to take the blog offline for a few hours today. Sorry about this, but it's all part of My Very Big News. So until about 17:00 tonight Eastern time (21:00 UT), I will have to turn off comments, and I won't be posting. Sometimes WordPress hiccups and allows commenting even after I turn it off, but be warned that I'm making a database upgrade, and any comments left on this blog after 10:00 Eastern time (14:00 UT) will be deleted. However, once things are back up and running I'm hoping everything will be fine. Until then, feel free to read my last post about Tunguska and let it sink in for a while.