Astronauts couldn't get life insurance: here's how they self-insured

During the 60s and 70s it would appear that private life insurance was not available to astronauts.  Here's a good post about how astronauts of the time used their own autographs as a form of life insurance for their families.

Here is more.  Here is further explanation with photos.  Here is the Byrds tribute to Armstrong, Aldrin, and Collins.

via Marginal Revolution.

Updated to fix broken link.