Search for little worlds - part 1

Hello everyone!!!

Glad to meet you once again in the blog

Till now you might be thinking what are these little worlds I am gonna tell about. First, we start our voyage through the history of the solar system, then I shall explain you what experiences I have faced and the new techniques used in the modern astrometry to search for these little ones.

The solar system is the only part of the universe which we can explore with a spacecraft of the kind we can build today. It is made up of one star, eight planets, several dwarf planets and various lesser bodies such as satellites, asteroids, comets and meteorites.

First, we begin with a cloud of dense gas, a nebula. This is a remnant of either a supernova or might be in one of the arms of our galaxy.Due to the high density of the gas, some where in the nebula, a still more dense blob of gas formed which was slowly attracting some more gas from its neighborhood. This is called a protostar.  At some moment, the center of the blob gets denser and denser, so denser that the temperatures raised to fifteen million degrees Celsius at the core which triggered of nuclear reactions and a star was born.   
              "So, this lighted up the life?" you would ask. But no.
               After sometime a cloud a gas and interstellar dust from which the star was born, the sun gathered round this sibling star and due to the Sun's rotation, this gas gradually Flattened like a chef's dough who manually spins it in the air. So, a disk of flat interstellar gas and dust surrounded our sibling Sun.

               Now, due to the virtue of weight of several gases, the heavy gases and compounds circled near the Sun whereas the lighter gases such as hydrogen circled away from the Sun.

               This arranged gas disk slowly turned to liquid blobs of matter which slowly developed a solid core with lots of heat in them formed the protoplanets (planetesimals)

to be continued........