planetesimal theory meaning in Hindi

Examples

1. During the 20th century many theories addressed the issue, including the " planetesimal theory " of William McCrea ( 1960 ) and finally the " capture theory " of Michael Woolfson.
2. In the second essay in the series, Winchester described three scientific theories on the origins of the universe, identifying her own view as the  planetesimal theory,  which held that the observable universe developed as gravitational forces caused matter to coalesce over long eons of time.