SPACE (SPACE) IS RELATIVELY EMPTY AREAS OF THE UNIVERSE THAT LIE OUTSIDE THE ATMOSPHERES OF CELESTIAL BODIES. CONTRARY TO POPULAR BELIEF, SPACE IS NOT EMPTY SPACE - IT HAS A VERY LOW DENSITY OF SOME PARTICLES (MOSTLY HYDROGEN), AS WELL AS ELECTROMAGNETIC RADIATION AND INTERSTELLAR MATTER. THE WORD "COSMOS" HAS SEVERAL DIFFERENT MEANINGS. SOMETIMES THE COSMOS UNDERSTAND ALL OF THE SPACE OUTSIDE OF THE EARTH, INCLUDING THE HEAVENLY BODIES.
Solar system - a planetary system that includes a Central star - the Sun - and all the natural space objects revolving around the Sun. It was formed by the gravitational compression of the dust cloud around of 4. 57 billion years ago. Most of the mass of objects in the Solar system has the Sun; the remainder is contained within eight relatively solitary planets have nearly circular orbits and located within a nearly flat disc - plane of the Ecliptic.
Planets of the Solar system PLANETS OF THE SOLAR SYSTEM: MERCURY VENUS EARTH MARS JUPITER SATURN URANUS NEPTUNE
The formation and evolution of the Solar system According to the conventional current hypothesis, the formation of the Solar system began about 4. 6 billion years ago with the gravitational compression of a small part of a giant interstellar dust and gas clouds. This is the initial cloud was probably the size of a few light years, and was the progenitor for several stars.
Colonization of the Solar system THE PRACTICAL SIGNIFICANCE OF COLONIZATION DUE TO THE NEED TO ENSURE THE EXISTENCE AND DEVELOPMENT OF MANKIND. OVER TIME THE POPULATION GROWTH, ENVIRONMENTAL AND CLIMATE CHANGE COULD CREATE A SITUATION WHERE THE LACK OF HABITABLE TERRITORY WILL JEOPARDIZE THE CONTINUED EXISTENCE AND DEVELOPMENT OF HUMAN CIVILIZATION. ALSO NEED TO CHECK OTHER OBJECTS IN THE SOLAR SYSTEM CAN ALSO BE CAUSED BY HUMAN ACTIVITIES: ECONOMIC OR GEOPOLITICAL SITUATION IN THE WORLD; A GLOBAL CATASTROPHE CAUSED BY THE USE OF WEAPONS OF MASS DESTRUCTION, DEPLETION OF THE PLANET'S NATURAL RESOURCES AND OTHER