If you're jonesing for some spacey stuff and maybe some critical thinking too, then check out these three links:
1) Starts with a Bang has a diary of the Ares I-X launch a couple of weeks ago.
2) The 127th Carnival of Space is lying in wait at Next Big Future.
3) The 123rd Skeptics Circle is at Blue Genes Science News, where things have become decidedly Galilean.
So go waste your Thursday afternoon learning stuff.