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Whose mission first discovered Mercury’s global magnetic field?
Quick Answer
NASA’s Mariner 10. In 1974 it found that Mercury has an intrinsic magnetic field.
The Full Story
Mariner 10 flew by Mercury in 1974 and measured evidence for a global magnetic field. This was unexpected because Mercury is small and cool enough that scientists thought it might have lost such a field long ago. The finding suggested a partially molten, active interior and changed ideas about the planet’s evolution. Later missions confirmed and refined the discovery.
Key Facts
1.Flyby in 1974
2.Mercury has a global magnetic field
3.Revealed by Mariner 10 magnetometer data
YouTube Angle
Suggested video title for this topic:
"The tiny planet that still has a magnetic shield"
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