October 4th is the anniversary of the launch of Sputnik 1, the first artificial satellite!
Primary: Build a replica of the Sputnik 1 satellite. Sounds simple, but see how detailed you can get!
Secondary: Launch your Sputnik 1 replica into orbit around Kerbin.
Jeb: Launch it on a replica of the R-7 rocket.
Val: Launch your replica into Sputnik 1's historical orbit: Periapsis 215km, Apoapsis 940km, Inclination 65 degrees.