Neptune
A new study from the University of Zurich challenges the traditional view of Uranus and Neptune as ice giants, suggesting they could be dominated by rock. Researchers developed a hybrid modeling approach to explore possible interior structures. The findings also shed light on the planets' irregular magnetic fields.
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Researchers have identified a compact cluster of objects, dubbed the inner kernel, within the solar system's Kuiper belt. This discovery, made by analyzing orbits of thousands of Kuiper belt objects, reveals an ancient, undisturbed formation at about 43 astronomical units from the sun. The finding offers insights into the early solar system's evolution, including Neptune's migration.