Turn on your TV if it’s off. About 17 years after the loss of the Challenger, the Columbia broke up on re-entry this morning.
We lost the first teacher in space on the Challenger, and the first Israeli in space on the Columbia.

I’ll probably reflect on it more later. But it occurs to me that there aren’t many commercial airliners the age of the Columbia in use. I’m no aerospace engineer, but I’d love to hear the opinion of one on what the operational life of one of these craft ought to be. This is one of those where-were-you-when-you-heard? moments in history, like the Challenger and the WTC disaster.