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#391Physics & AstronomyFront Page6 March 2026

The Strange Chemistry of the interstellar comet 3I/ATLAS: An Ancient Galactic Relic

Astronomers have measured the isotopic signature of a visitor from outside our Solar System, finding extreme chemical ratios unlike any local body. The data suggests this icy object formed over 10 billion years ago in a cold, metal-poor environment.

By Cordiner, Roth, Micheli, Villanueva, Farnocchia, Charnley, Biver, Bockelee-Morvan, Bodewits, Chandler, Crovisier, Drozdovskaya, Furuya, Kelley, Milam, Noonan, Opitom, Schwamb, Thomas

#392Chemistry & Material ScienceFront Page26 February 2026

Generative AI Redefines the Design Limits of Lattice Metamaterials

Engineers have combined deep learning with voxel-level generation to design highly efficient structures that absorb both impact energy and sound. This method outperforms traditional topology optimisation, offering a rigorous new approach to complex structural design.

By Hu Z, Tao Q, Ding J, Qu S, Ye H, Chua JW, Niu T, Li R, Ma WWS, Mo H, Liu H, Zhai W, Li X, Song X.

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