Astronautix - history of manned missions to mars.
Hello,
The feature has been up for several months, but if you haven't checked it out in detail, the Astronautix website has a nice piece on the history of manned missions to mars.
As many of you already know, some of the early Russian designs are fascinating.
"...sixty years of studies without end - an objective that is always "20 years from now"?"
Enjoy, Vince