Theia: The Hypothetical Ancient Planet That Collided with Earth
Explore the ancient planet Theia, believed to have collided with Earth 4.5 billion years ago, shaping our planet and forming the Moon.
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Accretion in Astrophysics: How Massive Objects Form from Matter
Accretion in astrophysics explains how small particles merge to form massive celestial bodies like stars, planets, and black holes through gravitational attraction.
Giant-Impact Hypothesis: How the Moon Was Formed from Earth Collision
Explore the giant-impact hypothesis explaining how the Moon formed from a massive collision between Earth and a Mars-sized body called Theia billions of years ago.
Understanding Perturbation in Astronomy and Its Effects on Orbits
Explore how perturbation affects celestial orbits, causing deviations from perfect circles due to gravitational and non-gravitational forces in astronomy.