Molten Magma Ocean Discovered Deep Inside Uranus and Neptune

New Findings Challenge Understanding of Uranus and Neptune

According to Radiotrek — Світ: A recent study suggests that Uranus and Neptune may contain a vast ocean of molten magma in their interiors, contradicting the long-held model of these planets as ice giants. Published on Monday, June 30, 2026, the research indicates that the internal structure of these worlds is far more complex than previously thought. This discovery could reshape how scientists view the composition and evolution of planets in our solar system.

Uranus and Neptune, traditionally classified as 'ice giants,' are believed to have thick icy mantles beneath their atmospheres and rocky cores at the center. However, this model fails to fully account for certain anomalies in their magnetic fields and heat emissions. To address these mysteries, researchers developed a series of simulations exploring the planets' interiors. According to the new model, Uranus and Neptune consist of three primary layers:

• An outer atmosphere composed of hydrogen and helium.
• Beneath that, an intermediate layer containing hydrogen, helium, magnesium, oxygen, and silicon compounds.
• At the deepest level, likely a massive ocean of molten magma made up of silicates, iron, and hydrogen.

This finding could fundamentally alter scientific understanding of how ice giants formed and evolved in our solar system. Notably, sub-Neptunes are the most common type of exoplanet in the galaxy, yet no such planets exist in our solar system, making this research particularly relevant for studying distant worlds.

Significance for Planetary Science

These results hold major implications for future studies in planetary science and astrophysics, opening new avenues for exploring the interiors of other planets. The article was authored by Olena Shvydka, with information sourced from Universe Space Tech.

The detection of a potential molten magma ocean within Uranus and Neptune could significantly impact our understanding of planet formation and development across the solar system. Olena Shvydka

This discovery underscores the intricate internal structure of ice giants and may prompt a reassessment of existing theories. Studying these planets, particularly in the context of exoplanets, opens new horizons for investigating planetary systems throughout our galaxy.

This groundbreaking discovery of a molten magma ocean within Uranus and Neptune not only challenges existing models but also invites further exploration into the dynamics of their moons. Interestingly, recent research indicates that the moons of Uranus have undergone significant transformations throughout their history, which could provide additional insights into the planetary evolution processes in our solar system.