Help finding topic - Scientist and/or science-fiction writer...

[Flames89]

Hey, thought I would put this in here to look for help.
Sometime in the last year or two, there was an article about a scientist and/or science fiction writer who passed away. In it, he wrote a letter to his wife that he had been with for a long time.
That is all I can remember, and am trying to recall. I have searched...

Thanks for any help.

[Flames89]

Found it through other means.
Carl Sagan. Comments his wife wrote about their relationship.

[Flash Walken]

http://en.wikipedia.org/wiki/Ann_Druyan