This book was compiled from contributions given on the seventh IAA Symposium on Small Satellites for Earth Assertion, May 4–eight, 2009, Berlin (IAA – Worldwide Academy of Astronautics). From the 15 durations for oral exhibits and two poster durations, fifty two contributions have been chosen which might be advisor for the model new developments and tendencies inside the area of small satellites for Earth comment. They re ect the potentials of quite a lot of missions and related utilized sciences. This may be based mostly totally on nationwide duties or worldwide co-operations, single satellites of constellations, pico-, nano-, micro- or mini-satellites, developed by firms, evaluation institutions or companies. The first focus is on new missions to observe our Earth’s belongings (Half I), and the setting throughout which our Earth is emb- ded (Half II). Half III provides with distributed space methods, a singular perform of small satellites and often impractical to do with big satellites. Proper right here we take into consideration constellations of satellites with give consideration to future missions relying on co-working satellites. For all of the model new developments and duties we might like correctly e- cated specialists coming from the faculties. Many universities included already the occasion and implementation of small satellites of their curriculum. The u- versity satellites chapter (Half IV) reveals the high high high quality which is already reached by a variety of the schools worldwide.