Progress in Technology: Story of Mini-satellites

With an edge length of 10 cm the mini-satellite belongs to the smallest built satellites so-called cubesats. Dozens of them revolve in between our planets. Many of them remain for the time being in cosmos for a few weeks upto months. That the small technology wonders precisely are not long lived, their orbit lies before all at low level. The rest of the higher atmosphere retards the flight of mini-satellites continuously.