The exploration of space What s Out There

The exploration of space What s Out There The first exploration of space began in 1957 with the launch of the first artificial satellite, Sputnik 1, sent into space by the Soviets. Since ancient times have dreamed of leaving their homeland and the exploration of other planets worlds unknown to man. Every age has a story of faith, like the "sky" is the form. The Greeks believed that the stars and space have been made from a material called "Quitenses", and other cultures once thought that the stars were away from their people. Now we know what the stars are, they are made of various gases that explode over and over again. Until about 43 years, people do not have the means to access or send objects into space. The most difficult part of the jouey into space, rockets, which are strong enough and reliable enough to an object in space. Joint hearing of the terms of exploration of space are comets and asteroids is. A comet is basically small, rock and ice, and rotates around the sun. When a comet near the sun bears some ice tus into gas. This gas and some loose powder creates a long tail of light, which means that behind the comet. When a comet was on the ground, which could cause serious damage. For example, even if something relatively small in size to Earth, it would take too much damage. Po 'of a comet, the size is approximately 200 meters in diameter and, if it is a sea, would be the destruction of all cities in a large radius. Asteroids are small or smaller planets that are members of the solar system and move into so-called elliptical orbits. They are usually between the orbits of Mars and Jupiter.