A. Nebular Hypothesis
B. Planetesimal Hypothesis
C. Steady State Theory
D. None of these
- The Planetesimal Hypothesis explains how the solar system formed from small solid particles called planetesimals that gradually stuck together to create planets.
- According to this idea, dust and gas in a spinning cloud slowly clumped into larger bodies, eventually forming planets, moons, and other objects.
- It helps scientists understand the early stages of planetary formation and why planets have different sizes and compositions.