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Edition #30 · Sunday, June 28, 2026 · 2086 positive stories
Science & Breakthroughs

Uranus, Neptune may be magma worlds, not ice giants

Phys.org Latest Fri, 26 Ju
Uranus, Neptune may be magma worlds, not ice giants

Uranus and Neptune remain two of the most mysterious objects in the solar system, primarily because they have been visited only by NASA's Voyager 2 spacecraft in 1986 and 1989, respectively. Their "ice giant" moniker comes from longstanding hypotheses that their interiors are comprised of an icy mantle beneath their hydrogen-helium atmospheres. While Jupiter and Saturn are also composed primarily of hydrogen and helium, Uranus and Neptune are hypothesized to have a layered structure composed of

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About Science & Breakthroughs coverage

The science section covers breakthroughs in medicine, physics, biology, and technology. We surface discoveries that expand what humanity can do, from new treatments reaching clinical trials to engineering feats that seemed impossible a decade ago. Every link goes to the original publisher so you can read the full study or press release yourself.

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