Starfish Suborbital Nuclear Tests, 1962.

I recently came across the very interesting, if not highly disturbing, history of suborbital nuclear bomb tests, mostly conducted in the 1960s.  I had never really heard of them before.

I started my learning with a long but highly interesting scientific paper, which is available free of charge, covering the EMP aspects of nuclear bombs, and also the modification of the Van Allen belts by VLF transmissions.

Here's a 2-minute video of some of the tests:

And here's an hour-long video of declassified material: