Today is the first of three grim anniversaries in late January and early February (within a week of each other) of the deaths of American astronauts. On this day in 1967, Ed White, Roger Chafee and Gus Grissom were incinerated on the launch pad in a ground test of the Apollo capsule.

Jim Oberg has more on these closely-timed anniversaries, in which he makes a compelling case that none of them were “accidents” but that all were avoidable, and that we’ve been lucky that we aren’t commemorating even more astronaut deaths. Here’s what I wrote a year ago (in which I criticized NASA’s reluctance to send a Shuttle to Hubble, a subject on which nothing has happened in the interim to change my mind).

[Update a little after noon]

OK, my dear friend Tim Kyger is whining at me in email that they didn’t die from their burns–they died from asphyxiation. True enough.

I didn’t explicitly say that the burns killed them, but I did imply it, and probably “incineration” is too strong a word for the degree of the burn damage to their bodies. The point remains that they died from a fire (and their deaths, like those of their later colleagues in the Shuttle) were avoidable.