What is the role of gravity in the formation of our sun and planets
Gravity plays a crucial role in the formation of our sun and planets. It was the force of gravity that caused a cloud of gas and dust to collapse and form the protostar that eventually became our sun. As the protostar continued to accrete mass from the surrounding disk of gas and dust, its gravity became stronger and led to the initiation of nuclear fusion, which in turn gave birth to a stable star.
In the case of the formation of planets, gravity also played a significant role. As the protostellar disk of gas and dust continued to cool and condense, small particles began to collide and stick together to form planetesimals. These planetesimals then attracted more matter through their own gravitational pull, eventually growing into protoplanets. The gravity of these protoplanets further attracted more material, leading to the formation of larger bodies such as planets and moons.
Overall, gravity is responsible for the formation of our sun and planets by bringing together the necessary material and causing it to accumulate and coalesce under its influence. Without the force of gravity, the complex structures of stars and planets that we observe in our universe would not have been able to form.