I'll make a start:
1. Faking data from space: Images, videos, making up explanations for different events such as supernovas, material from the moon,...
2. Simulating space-based services: GPS, Television, Internet, Phone
3. Ice Wall: paying off guards, buying equipment for them, making up shadow companies where they could say they work
4. Faking rocket and shuttle starts and landings: buying the satellites and other stuff build in the shuttles, maintaining confidential shuttle landing base in the atlantic ocean / africa,... paying for the second start to fake the landing, ...