Solving the mystery of a magnetic Moon

+ what to expect from the big IPCC climate report US Edition - Today's top story: Moon lacked a magnetic field for nearly all its history – new research resolves mystery sparked by rocks brought back on Apollo [View in browser]( US Edition | 5 August 2021 [The Conversation]( Academic rigor, journalistic flair The Apollo missions that put astronauts on the surface of the Moon were – and still are – a triumph of technology and human spirit. But perhaps just as important as those footprints left on the Moon are the samples of lunar rock and soil the astronauts brought back to Earth. Geophysicists have learned a lot studying those rocks over the years, including that the Moon once had a magnetic field. But the enduring mystery of why it no longer has one remained. Until now. John Tarduno, a geophysicist at the University of Rochester, reexamined the Apollo rocks with a new technique that can detect even the faintest signs of magnetism. 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