![](http://upload.wikimedia.org/wikipedia/commons/thumb/9/96/Thorad_Agena_with_SERT-2.jpg/250px-Thorad_Agena_with_SERT-2.jpg)
Credit: NASA
The Thor-Agena launch vehicle with the SERT-2 (Space Electric Rocket Test-2) spacecraft on launch pad at the Western Test Range in California.
The Thor-Agena launch vehicle with the SERT-2 (Space Electric Rocket Test-2) spacecraft on launch pad at the Western Test Range in California.