The first Space Exploration started in 1957 with the launch of the first artificial satellite, Sputnik 1, sent into space by the Soviets. Since ancient times people have dreamed of leaving their home planet and exploring other worlds not known to man. Every era through out history has had a belief as to what the “heavens” are made form. The Greeks believed that the stars and space were made of a material called “Quitenses”, and other culture once thought that the stars were made of their peoples passed away.
We know now what stars are really made of; they are made of various gases that explode over and over again. Up until about 43 years ago people did not have the means to travel to or send objects into space. The hardest part of traveling into space was developing rockets that were powerful enough and reliable enough to boost an object into space.
Common heard of Space Exploration terms are Comets and Asteroid’s. A comet is basically small, rocky, and icy and revolves around the sun. When a comet passes close to the sun some of the ice turns to gas. This gas and some loose dust creates a long, bright tail that trails behind the...
To view and download this full PLR article, you must be logged in. Registration is completely free. Once you create your account, you will be able to browse, search & downlod from our PLR articles database of over "1,57,897+" on 1,000's of niches and 200+ categories without paying a penny. Click here to signup...
