How Earth's Twin Killed Itself to Create the Moon

Where did the Moon really come from? A groundbreaking new study has traced lunar origins to an inner-solar-system planet — a possible twin of early Earth. Using ancient rock samples and advanced modelling, researchers may have uncovered the true identity of the world that collided with Earth and gave birth to the Moon. Is the Moon’s “lost parent” hiding in plain sight? This explainer breaks down the discovery, the science behind the collision, and how it rewrites lunar history.