SOLAR SYSTEM

Detailed explanation-1: -"Planets form out of the dusty material that surrounds protostars in a disk, ‘’ study lead author Dominique Segura-Cox, an astronomer at the Max Planck Institute for Extraterrestrial Physics in Garching, Germany, told Space.com .

Detailed explanation-2: -A protostar becomes a main sequence star when its core temperature exceeds 10 million K. This is the temperature needed for hydrogen fusion to operate efficiently. The length of time all of this takes depends on the mass of the star. The more massive the star, the faster everything happens.

Detailed explanation-3: -The story of our solar system’s origin is pretty well known. It goes like this: the Sun began as a protostar in its “solar nebula” over 4.5 billion years ago. Over the course of several million years, the planets emerged from this nebula and it dissipated away.

Detailed explanation-4: -The protoplanetary disk is an accretion disk which continues to feed the central star. The disk is initially very hot and cools later in what are known as the “T Tauri Star (TTS)” stage by possible formation of small dust grains made of rocks and ices.

Detailed explanation-5: -Most emerging stars (protostars) have a protoplanetary disk that forms from a molecular cloud. Water was present in the molecular cloud that gave birth to our solar system.

Detailed explanation-6: -The formation of a protostellar disc is a natural outcome during the star formation process. As gas in a molecular cloud core collapses under self-gravity, the angular momentum of the gas will slow its collapse on small scales and promote the formation of a protostellar disc.