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How was our Moon Made?

Of the hundreds of moons in our Solar System, Earth's moon is unique and it has played a pivotal role  in making life on Earth possible. Dr. Dana Mackenzie explains what is special about the Moon and where it came from.

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Theia - Birth of the Moon

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Simulation of collision of Theia and Earth

Image #1

Artist's conception of the impact of Theia on Earth, leading to the formation of the Moon.

Image #2

Simulation of first 24 hours after collision of Theia and Earth. Yellow represents crust materials and red is iron cores. Moon formed over a one-year period.Courtesy of Dr. Robin Canup, Sothwest Research Institute.

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