SpacePlanetary Pebbles and rocks :growth through collision – The path from dust grains to small rocks The process of growth through collision is a fundamental mechanism in the formation of small rocks and pebbles. Here’s a simplified overview:Step 1: Dust Grains Tiny dust grains, often found in space or in the early stages of planetary formation, are the starting point for this process. Step 2: Collisions and MergingAs these dust grains collide and merge, they form larger particles. This process is facilitated by factors like gravity, friction, and electrostatic forces.Step 3: Accretion and GrowthThe merged particles continue to grow through subsequent collisions, gradually increasing in size and mass. This process is known as accretion.Step 4: Pebble FormationAs the particles continue to grow, they eventually form small pebbles. These pebbles can then collide and merge with other pebbles, leading to further growth.Step 5: Rock FormationThe continued process of collision and accretion.
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