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Planetary science

Magnetic moments at Jupiter

The coming together of two spacecraft near Jupiter provided a unique opportunity to investigate the giant planet's magnetic field — and the results, collected in this issue, are stunning.

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Figure 1: The conjunction of the spacecraft Cassini–Huygens and Galileo at Jupiter.
Figure 2: In orbit around Jupiter, the Galileo spacecraft caught this image of a volcanic eruption on Io, the innermost of Jupiter's largest moons.


Figure 3: Synchrotron emission around Jupiter, picked up by instruments aboard the Cassini–Huygens spacecraft, reveals electrons with unexpectedly high energies4 — up to 50 million electron volts (yellow regions).



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Correspondence to Thomas W. Hill.

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Hill, T. Magnetic moments at Jupiter. Nature 415, 965–966 (2002).

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