Small satellites have started to be produced as a solution to the volume, weight and cost problems of traditional satellites. CubeSat as a small nano satellite whose production is gaining speed today, has contributed to research in space and satellite with the Internet of Things. CubeSat networks that can communicate each other in space are created with the development of the Internet of Things. The performance of satellites is attempted to be maximized with small satellites. Small electronic components of these satellites increase the sensitivity to space radiation. At the same time, the performance of the satellite is affected. More durable materials are being developed to minimize these impacts. In addition, satellites are tested for their durability by irradiating the satellite to be sent with close amounts of space radiation before it is sent into space. Signals that are important in satellite communication are affected by atmospheric conditions. In this context, the effect of the ionosphere which is the layer of the atmosphere on signals is mentioned. A compilation article about CubeSat networks that bring the concept o f the Internet of Space Things to the fore, the effects of space radiation on small satellites, the materials that can be used on small satellites to reduce this effect and the radiation tests conducted has been written to address the lack of local resources.