https://www.live-feeds.com/feed/scientists-melted-a-diamond-and-cracked-a-secret-of-ice-giantsContinuously updated, source-cited coverage. https://www.live-feeds.com/feed/scientists-melted-a-diamond-and-cracked-a-secret-of-ice-giantshttps://www.live-feeds.com/feed/scientists-melted-a-diamond-and-cracked-a-secret-of-ice-giants#u53795Tue, 01 Sep 2026 09:46:34 +0000Scientists have melted a diamond to resolve a 20-year mystery regarding diamond melting and the carbon density paradox. This experiment provides new insights into the internal composition of ice-giant planets. Research conducted at the Lawrence Livermore National Laboratory suggests that these findings could also lead to a triple fusion gain. By successfully liquefying the gemstone, researchers have addressed long-standing questions about how carbon behaves under extreme pressure and temperature conditions found in deep planetary interiors.Why it mattersIce-giant planets contain extreme pressu