Otto Schmidt, A Russian scientist proposed his Inter stellar dust hypothesis in 1943, to explain the complex problem of the origin of the earth and the solar system. According to him, the earth and the solar system was formed from gas and dust particles, but, he did not explain the genesis of the gas and dust particles.
Origin of the earth and solar system:
The scientific researches about the universe have given ample evidences of the presence of ‘Dark matter’ in the form of gas and dust particles known as ‘gas and dust cloud’ in the universe. Schmidt assumed that these gaseous clouds and dust particles might have been formed from matter coming out of the stars and meteors. According to ‘ Inter-Stellar-Dust Hypothesis’ our sun during its ‘galactic revolution’ captured the dark matter had its own angular momentum and after being attracted buy sun during its ‘galactic revolution’ started revolving around the primitive rotating sun. These dark matter were called Inter Stellar Dust by Schmidt.
It may be pointed out that in the beginning the gaseous cloud and dust particles were not well arranged and stabilized and hence they were revolving around the sun separately. Gases being less in volume were destabilized and less systematically arranged, while the dust particles being more in amount and quantity and were more stabilized and more systematically arranged. Thus, the dust particles after being combined and condensed were changed into a flat disc, which started revolving around the sun under the combined impacts of three types of motions;
- The rotational motion of the sun itself,
- Gravitational force exerted by the sun on the disc of dark matter,
- The angular momentum of dark matter of the universe.
Thus, under the combined impact of these three types of motion each and every particles of dark matter of the universe started redistributing itself on the basis of mass, density dimension and the existing amount of centrifugal force tending to push the particles towards the sun. Thus, the particles have larger amount of centrifugal force were thrown out towards the margins of the rotating disc of dark matter around the sun, while the particles having small amount of centrifugal force were attracted towards the band of the disc nearer to the sun.
The intense heat of the of the sun dispersed the gaseous particles towards the margins of the disc. Collision among the dust particles started the process of aggregation and accretion around the bigger particles which became the embryos of the future planets gas particles could not condense as they could not be organised due to their continued motion. With the passage of time these embryos captured more and more matter and thus grew in size to became ‘asteroids’ and these asteroids are still revolving in the revolutionary direction in the disc. These asteroids further grew in size due to continuous accretion of nearby matter around them and thus they became planets. Some matter still remained in the disc after the formation of planets. These matter were condensed to form satellites of the planets.
Schmidt’s Inter stellar dust Hypothesis was criticized by the current cosmogonic ideas, which is given below:
- The gravitational force of the primitive sun was incapable to capture dark matter, because, only Binary star system can capture dark matter.
- According to some astrophysicists ‘ meteorites and asteroids were formed as a result of the disintegration of some planets and not the planets were formed out of meteorites and asteroids.
- Till now no trace of remnants of dark matter could be discovered either in the archaeological drilling on the earth’s surface or an any planet.