Moon may be 40 million years older than thought: Study

A new study suggests that the Moon may be 4.46 billion years old, pushing back its age by 40 million years. The study used crystals brought back by Apollo astronauts in 1972 to determine the time of the Moon's formation. These crystals are the oldest known solids that formed after the giant impact that created the Moon. The researchers used an analytical method called atom probe tomography to determine the age of the lunar crystal. This study provides valuable insights into the formation and history of the Moon. However, the precise time when this happened continues to be a mystery, they said.

from Science News - Times of India https://ift.tt/NaS7Ac9