A new analysis of Apollo samples and Earth rocks suggests that a nearby rocky planet, not a distant object, collided with early Earth and formed the moon. The study argues that this lost planet, Theia, originated in the inner solar system and shared Earth’s early neighbourhood, offering fresh insight into one of the most important events in our planet’s history.A new analysis of Apollo samples and Earth rocks suggests that a nearby rocky planet, not a distant object, collided with early Earth and formed the moon. The study argues that this lost planet, Theia, originated in the inner solar system and shared Earth’s early neighbourhood, offering fresh insight into one of the most important events in our planet’s history.
