It IS still happening. There's just less stuff available between planets. About 100 tons of interplanetary debris falls to Earth every day, mostly as micrometeorites. A hundred tons just isn't that dramatic against the 6,600,000,000,000,000,000,000 tons the Earth has already collected.
It's called accretion.
Saturn was shaped by the process of accretion, where gas and dust particles in the early solar system clumped together to form a protoplanetary disk. This disk eventually coalesced to form Saturn and its rings. Gravitational interactions with other objects in the solar system also played a role in shaping Saturn's current appearance.
The answer to this question depends on your school of thought.If you side with science, the answer is the Big Bang.If you side with religion, the answer is God.
This is what scientists think happen: a previous large star exploded in a supernova. The outer layer of dust and gas is ejected into space. The gas eventually formed the sun. The dust pulled together to form everything else in the solar system.
There is no gravity present in that particular part of the solar system.
accretion
It's called accretion.
It's called accretion.
Solar system
solar system Material that is in orbit around a massive central body is an accretion disk. This disk can eventually turn into a white dwarf star. An accretion disc may eventually form planets such as the ones in our solar system.
accretion disc
During the accretion phase of the early solar system, small grains of dust collided and stuck together, gradually building up larger and larger bodies through mutual gravitational attraction. These bodies eventually formed planetesimals, which in turn collided to form protoplanets and eventually the planets we see today. The process of accretion shaped the structure and composition of the solar system as we know it.
The planets grew from the impact of innumerable smaller bodies early in the history of the solar system. This process is called planetary accretion. The early history of the terrestrial planets is marked by continuous collisions with larger and larger planetary bodies. Accretion was essentially complete by 4.56 billion years ago. Meteorites and asteroids are materials left over from the formation of the solar system that have not yet accreted to a planet. Accretion continues even today at a very slow rate whenever a meteor falls to Earth.
accretion disk
Saturn was shaped by the process of accretion, where gas and dust particles in the early solar system clumped together to form a protoplanetary disk. This disk eventually coalesced to form Saturn and its rings. Gravitational interactions with other objects in the solar system also played a role in shaping Saturn's current appearance.
Plants in our solar system, including those on Earth, formed due to the force of gravity that led to the condensation of dust and gas in the early solar system. This process eventually allowed for the formation of protoplanetary disks, which served as the birthplace of plants through processes such as accretion and differentiation.
Out of an accretion disk leftover from the solar nebula. Small particles bump together and collect until they form planets.