times, as well as the absence of all of the processes for destroying goodness. How shall we start this evolution to the "Universial Happiness"? The main task is to study the laws which rule the Universe. To do so, we must study the Universe, and therefore we must learn how to live in outer space. To begin that long period of our evolution, we will have to design large manned space rockets. So, the first space flight will be the beginning of the new era of space exploration, the beginning of Space Culture in human history. It will be the beginning of our history itself. He truly beleived that it was the destiny of humankind to occupy the solar system and then to expand into the depth of the cosmos, living off the energy of the stars to create a cosmic civilization that would master nature, abolish natural catastrophes, and acheive happiness for all.
1n 1926 Tsiolkovsky defined his "Plan of Space Exploration", consisting of sixteen steps for human expansion into space:
1) Creation of rocket airplanes with wings.
2) Progressively increasing the speed and altitude of these airplanes.
3) Production of real rockets-without wings.
4) Ability to land on the surface of the sea.
5) Reaching excape velocity (about 8 Km/second), and the first flight into Earth orbit.
6) Lengthening rocket flight times in space.
7) Experimental use of plants to make an artificial atmosphere in spacships.
8) Using pressurized space suits for activity outside of spaceships.
9) Making orbiting greenhouses for plants.
10) Constructing large orbital habitats around the Earth.
11) Using solar radiation to grow food, to heat space quarters, and for transport throughout the Solar System.
12) Colonization of the asteroid belt.
13) Colonization of the entire Solar System and beyond.
14) Acheivement of individual and social perfection.
15) Overcrowding of the Solar System and the colonization of the Milky Way (the Galaxy).
16) The Sun begins to die and the people remaining in the Solar System's population go to other suns.
Kosmodemyanksy, Arkady A., 1956. Konstantin Tsiolkovsky: His Life and Works. Foreign Languages Publishing House, Moscow, Russia.
Shkolenko, Yuri, 1987. The Space Age. Progress, Moscow.
Samiolovitch, Sergei, I., 1969. Citizen of the Universe: Sketches of the Life and Works of Konstantin Eduardovitch Tsiolkovsky (in Russian). Tsiolkovsiy State Museum of the History of Cosmonautics, Kaluga, Russia.