Quote Originally Posted by Ioannis View Post
Still, how do you cool a 7805 in space??? I insist on this

Ioannis
A quick search in google... Radiators that emit heat as IR.

Telecommunication satellites are all based on the same overall design using a 3 axis stabilization process, in which the North and South panels act as radiators and so ensure heat removal.
http://www.electronics-cooling.com/1...e-electronics/