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Earth is not exactly getting its youth back, but a new study has determined that the collision from which the Earth and moon were formed may have occurred much later than previously thought, making our planet and moon younger than scientists had commonly believed.
The Earth and the moon were created as a result of a giant collision between two planets the size of Mars and Venus. Until now, it was believed that the collision occurred when the solar system was 30 million years old – roughly 4.5 billion years ago.
But, according to a new study that was recently published in the scientific journal Earth and Planetary Science Letters, the true age of the Earth and moon can be determined by examining the presence of certain radioactive elements in the Earth's mantle.
