According to forecasts, thousands of new satellites will be launched into low Earth orbit by 2025. According to the space plans of Ilona Mask, about 11000 new satellites can be launched into the low Earth orbit under the StarLink project to transmit an accelerated Internet signal.
But what to do with all this near-Earth grouping, in case of its constant failure? Shoot down rockets, as in the stupid movie "Gravity"? The ingenious simplicity of the answer was found by Russian students of the Far Eastern Federal University. At its Design Center, a prototype of a satellite with a small solar sail was developed to reduce fuel consumption when transferring a satellite from orbit to orbit and its further disposal. A simple and elegant scheme of work is as follows:
FEFU students suggest equipping each satellite with a unified container, which at the end of the device’s life automatically opens the solar sail and causes natural braking. So, gradually reducing the height of the orbit, the satellite will enter the atmosphere and burn. On the other hand, the sail can be used to accelerate the apparatus, catching the pressure of the sun's rays like the sailboat works in the wind. Thus, you can gradually increase the height of the orbit and even go beyond the Earth's gravitational field
Young Russian scientists have already created a dimensional model of the future apparatus, the main elements of which are printed on a 3D printer and made of aluminum. A universal compartment with a sail in the format of 3U-cubsat of Russian design can be installed on various spacecraft. If the project of the Far Eastern Federal University wins in international space competitions of the NTI Sputnik challenge engineering teams under the auspices of the National Technology Initiative, our students will have the opportunity to launch their device into orbit.