SOLAR SYSTEM

Detailed explanation-1: -The nebular hypothesis is the idea that a spinning cloud of dust made of mostly light elements, called a nebula, flattened into a protoplanetary disk, and became a solar system consisting of a star with orbiting planets [12].

Detailed explanation-2: -Scientists have long agreed that the Moon formed when a protoplanet, called Theia, struck Earth in its infancy some 4.5 billion years ago.

Detailed explanation-3: -A planet is a large object that orbits a star. To be a planet, an object must be massive enough for gravity to have squeezed it into a spherical, or round, shape, . It must also be large enough for gravity to have swept up any rocky or icy objects from its path, or orbit, around the star.

Detailed explanation-4: -How did the Solar System’s planets come to be? The leading theory is something known as the “protoplanet hypothesis”, which essentially says that very small objects stuck to each other and grew bigger and bigger-big enough to even form the gas giants, such as Jupiter.