TED-Ed: Where did Earth's water come from? - Zachary Metz

Water, a vital component of Earth, is abundant here but rare in the solar system. It formed from hydrogen and oxygen through nucleosynthesis in stars and was spread by supernovas. Theories suggest water arrived on Earth via asteroids or was present during its formation. Recent research indicates Earth may have retained water early on, challenging previous beliefs. Understanding water's origin helps us comprehend life's early development on Earth.

What process is known as nucleosynthesis?

What are the theories regarding how water arrived on Earth?