The Moon just got older

 

New dating of crystals from the Moon determined that the Moon is about 40 years older than previously thought.

That's what science does. It keeps finding out new things.

The moon is 40 million years older than thought, ancient crystal suggests

"To answer the critics, Greer and colleagues joined the effort to verify the age of the crystal, using a technique called atom probe tomography, which is more commonly used in materials science for steel failure analysis or semiconductor research. With the technique, the scientists were able to take samples from a tiny sliver of one of the crystals and use a laser beam to evaporate the atoms one by one and identify them, ruling out that the lead atoms had clustered within the crystal.

“This new study shows that some of these zircons did form at 4.46 [billion years ago], only about 100 million years after the first solids formed in the Solar System,” Romain Tartèse, a senior lecturer in the department of Earth and environmental sciences at the University of Manchester, who was not involved in the study, wrote in an email."

 Micro-zircons from the Moon