Testing of the samples brought back by Chang'e-5, which were mostly basalt, showed that the moon had a magnetic field of between 2,000 to 4,000 nanoteslas approximately 2 billion years ago, which ...

The caseback represents the dark side of the moon. It offers a close look ... is resistant to magnetic fields reaching 15,000 gauss, and operates at 3Hz. Additionally, the caseback features ...