These are four photo's I took of the Challenger disaster on January 28, 1986.

> On the way to the launch pad 2 weeks before launch (notice full-sized van at bottom left).  Fatal solid rocket booster is shown on right attached to the "external tank" filled with liquid oxygen and nitrogen.

> The actual launch.  Dark smoke trail was immediately identified by NASA experts as a "bad burn".

> Shot taken a few seconds after the final words : "Challenger, go for throttle-up".

>  About 2 minutes after the explosion (zoom at 15 miles away only on 4X).