![Moon lacked a magnetic field for nearly all its history – new research resolves mystery sparked by rocks brought back on Apollo Moon lacked a magnetic field for nearly all its history – new research resolves mystery sparked by rocks brought back on Apollo](https://images.theconversation.com/files/414216/original/file-20210802-26072-1xy2dvx.jpg?ixlib=rb-1.1.0&q=45&auto=format&w=1000&fit=clip)
Moon lacked a magnetic field for nearly all its history – new research resolves mystery sparked by rocks brought back on Apollo
Magnetic field strength of the Moon at 30 km altitude from the 0.5 ∘... | Download Scientific Diagram
![Apollo 12 mission deploys Ames developed special Lunar surface Magnetometer to measure magnetic fields on the moon (Tri-axis magnetometer Stock Photo - Alamy Apollo 12 mission deploys Ames developed special Lunar surface Magnetometer to measure magnetic fields on the moon (Tri-axis magnetometer Stock Photo - Alamy](https://l450v.alamy.com/450v/prbj9d/apollo-12-mission-deploys-ames-developed-special-lunar-surface-magnetometer-to-measure-magnetic-fields-on-the-moon-tri-axis-magnetometer-prbj9d.jpg)
Apollo 12 mission deploys Ames developed special Lunar surface Magnetometer to measure magnetic fields on the moon (Tri-axis magnetometer Stock Photo - Alamy
![Inferred paleointensities of the core dynamo throughout lunar history... | Download Scientific Diagram Inferred paleointensities of the core dynamo throughout lunar history... | Download Scientific Diagram](https://www.researchgate.net/publication/357813127/figure/fig1/AS:1112022536200216@1642138241336/Inferred-paleointensities-of-the-core-dynamo-throughout-lunar-history-as-recorded-by.jpg)
Inferred paleointensities of the core dynamo throughout lunar history... | Download Scientific Diagram
![Moon lacked a magnetic field for nearly all its history – new research resolves mystery sparked by rocks brought back on Apollo Moon lacked a magnetic field for nearly all its history – new research resolves mystery sparked by rocks brought back on Apollo](https://images.theconversation.com/files/414220/original/file-20210802-18-817kht.jpg?ixlib=rb-1.1.0&q=45&auto=format&w=1000&fit=clip)
Moon lacked a magnetic field for nearly all its history – new research resolves mystery sparked by rocks brought back on Apollo
![Sitting on the lunar surface, this magnetometer provided new data on the Moon's magnetic field. This was one of the instruments used during the Apollo 12 mission Stock Photo - Alamy Sitting on the lunar surface, this magnetometer provided new data on the Moon's magnetic field. This was one of the instruments used during the Apollo 12 mission Stock Photo - Alamy](https://c8.alamy.com/comp/2BE1BFJ/sitting-on-the-lunar-surface-this-magnetometer-provided-new-data-on-the-moons-magnetic-field-this-was-one-of-the-instruments-used-during-the-apollo-12-mission-2BE1BFJ.jpg)
Sitting on the lunar surface, this magnetometer provided new data on the Moon's magnetic field. This was one of the instruments used during the Apollo 12 mission Stock Photo - Alamy
![Moon lacked a magnetic field for nearly all its history – new research resolves mystery sparked by rocks brought back on Apollo Moon lacked a magnetic field for nearly all its history – new research resolves mystery sparked by rocks brought back on Apollo](https://images.theconversation.com/files/414219/original/file-20210802-16-1fr7zf0.jpeg?ixlib=rb-1.1.0&rect=3406%2C57%2C4240%2C2178&q=20&auto=format&w=320&fit=clip&dpr=2&usm=12&cs=strip)
Moon lacked a magnetic field for nearly all its history – new research resolves mystery sparked by rocks brought back on Apollo
![Amazon.com: Apollo-Soyuz Project 1975 Nconceptual Drawing Of The EarthS Magnetic Field And The Van Allen Radiation Belt 1975 Poster Print by (18 x 24): Posters & Prints Amazon.com: Apollo-Soyuz Project 1975 Nconceptual Drawing Of The EarthS Magnetic Field And The Van Allen Radiation Belt 1975 Poster Print by (18 x 24): Posters & Prints](https://m.media-amazon.com/images/I/71n-E6S24WL._AC_UF894,1000_QL80_.jpg)
Amazon.com: Apollo-Soyuz Project 1975 Nconceptual Drawing Of The EarthS Magnetic Field And The Van Allen Radiation Belt 1975 Poster Print by (18 x 24): Posters & Prints
![Apollo 12 mission deploys Ames developed special Lunar surface Magnetometer to measure magnetic fields on the moon (Tri-axis magnetometer Stock Photo - Alamy Apollo 12 mission deploys Ames developed special Lunar surface Magnetometer to measure magnetic fields on the moon (Tri-axis magnetometer Stock Photo - Alamy](https://c8.alamy.com/comp/PRBJ9D/apollo-12-mission-deploys-ames-developed-special-lunar-surface-magnetometer-to-measure-magnetic-fields-on-the-moon-tri-axis-magnetometer-PRBJ9D.jpg)
Apollo 12 mission deploys Ames developed special Lunar surface Magnetometer to measure magnetic fields on the moon (Tri-axis magnetometer Stock Photo - Alamy
![Apollo 12 mission deploys Ames developed special Lunar surface Magnetometer to measure magnetic fields on the moon (Tri-axis magnetometer Stock Photo - Alamy Apollo 12 mission deploys Ames developed special Lunar surface Magnetometer to measure magnetic fields on the moon (Tri-axis magnetometer Stock Photo - Alamy](https://l450v.alamy.com/450v/2be1bcc/apollo-12-mission-deploys-ames-developed-special-lunar-surface-magnetometer-to-measure-magnetic-fields-on-the-moon-tri-axis-magnetometer-2be1bcc.jpg)
Apollo 12 mission deploys Ames developed special Lunar surface Magnetometer to measure magnetic fields on the moon (Tri-axis magnetometer Stock Photo - Alamy
![The palaeoinclination of the ancient lunar magnetic field from an Apollo 17 basalt | Nature Astronomy The palaeoinclination of the ancient lunar magnetic field from an Apollo 17 basalt | Nature Astronomy](https://media.springernature.com/full/springer-static/image/art%3A10.1038%2Fs41550-021-01469-y/MediaObjects/41550_2021_1469_Fig1_HTML.png)
The palaeoinclination of the ancient lunar magnetic field from an Apollo 17 basalt | Nature Astronomy
![Moon's magnetic field disappeared a BILLION years ago after its 'internal dynamo' stopped | Daily Mail Online Moon's magnetic field disappeared a BILLION years ago after its 'internal dynamo' stopped | Daily Mail Online](https://i.dailymail.co.uk/1s/2020/01/03/17/22958590-0-image-a-31_1578071774669.jpg)