I haven't been up to blogging this weekend, the news is just too damned depressing. Here are two rec's, tho. Go to Jay Manifold's page for a tutorial on the dangers of asteroid impacts, and an idea for how to create a reasonably priced, reasonably effective system to deal with the threat. I do have a few questions about it, which I will try to find time to raise, but I think is it a great bit of (a touch technical) writing, that gives us a good base for discussion (I didn't link the text, because it is on the left. Also, Lagniappe has a great essay on paying attention to the little anomalies in scientific research, and the dichotomy between getting things done and figuring things out. Worth reading, especially for the working scientist.