How Did the Moon Form According to the Giant Impact Hypothesis?

💡 The Answer

• A Mars-sized body called Theia collided with early Earth about 4.5 billion years ago.
• The impact ejected debris into orbit, which coalesced into the Moon.
• This explains the Moon's low iron core and similar isotopic composition to Earth's mantle.
• Computer simulations support the model, though alternative origins are still studied.