The occurrence of Earth hypothesis in the Solar System

Our Earth formed about 4.6 billion years ago along with the formation of a solar system called the solar family. One theory, called "Theory of Fog (Nebula) tells what happened in the 3 (three) phases:

• The sun and other planets still a gas, the fog was so thick and big
•  Fog is spinning and twisting with a strong, where compaction occurs at the center of the circle which then form the sun. At the same time lainpun material is formed into a smaller mass than the sun known as a planet, moving around the sun.
• Such materials to grow bigger and continue to conduct regular movement around the sun in an orbit that remain and form the composition of the Sun Family

Asteroids is one of the family of the sun, when moving too close to the earth, gravity will pull the asteroid into Earth's atmosphere, friction and fire. Parts that were not burned down in the earth called a meteorite. In general, meteorites can be divided into 3 groups:
   1. Iron meteorites (siderite, Fe element formulation and N)
   2. Mixture of iron meteorites - rocks (sicerolit)
   3. Stone meteorites (aerolit, the main composition is silikat/SiO2)

Asteroids

Tektit
Tektit name comes from the Greek "tektos" which means the liquid, lelelh. Tektit usually black, green or brown, are "amorphous", physically has some similarities with the obsidian.
Tektit occurs as the impact of a meteorite collision with the earth's surface, where the consequences of these collisions resulted in a stepping-liquid material is then quickly frozen.
Tektit measuring only a few grams, which is sometimes weigh 12 kg.
Tektit have unique forms of which exist in the form of buttons, bell, oval, teardrop.
Naming tektit tektit take from where it is found, for example: Moldavit (of Moldavia, Czechoslovakia), Philippinit (Dair Philippines), Javanit (from Java), Bilitonit (from Billiton / Pacific Islands)