As you may now know, the Space Shuttle Columbia has disintegrated on re-entry, killing all 7 astronauts on board. My thoughts with the families of those killed.
(read thoughts from bunda, Ben Hammersley, Richy C, Meredith and Andy)
[added]
Chris has an interesting viewpoint on the subject, and you can do much worse than monitor BlogDex, which, at the time of writing (10pm UTC), has the first 8 articles all on the subject. Metafilter is a useful source of coverage too, but stay clear of alt.prophecies.nostradamus where the end of the world is being predicted (again).
My thoughts:
- It was a tragic accident
- I seriously doubt it has anything to do with terrorism
- It's possible that someone's to blame, but let's wait for an official report
- The fact it happened not longer after the anniversary of the Challenger explosion was a mere coincidence
All in all, 'tis a sad day.

I just want to send out my prayers to the families of the shuttle tragedy.just to let you know, your family members were brave people and will always be remembered.when i first heard and seen that horrible accident on the news i really just took a moment and cried a few tears. loosing a loved one is the worst thing in the world. you will get through it and i hope you do.thanks for reading this sincerely Jessica/Melissa