The 'excess oxygen' stored in deep Earth magma may help explain how Earth’s atmosphere became oxygen-rich
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Updates every hour. Last Updated: 3-Nov-2026 00:15 ET (3-Nov-2026 05:15 GMT/UTC)
A recent study published in National Science Review has revealed silicate magma can store far more oxygen than its chemically allows. In high-pressure experiments, silicate melt can store up to about 5 wt.% excess oxygen, which is released as the magma rising. The findings suggest that oxygen-rich magmas could carry oxidizing power from Earth’s interior toward the surface, and may explain links between large-scale magmatism episodes and atmospheric oxidation in Earth’s history.
Guided by the classic notion that a protein's amino acid sequence determines its three-dimensional structure, protein structure prediction has long been a central problem in structural biology. Over the past decade, deep learning methods, exemplified by AlphaFold2 (AF2), have revolutionized the field, an achievement recognized by the 2024 Nobel Prize in Chemistry. Yet this success does not mean the protein folding problem is fully solved. Key challenges, each an opportunity for future breakthroughs, include single-sequence prediction, modeling protein dynamics, predicting multimeric complexes, and incorporating experimental constraints.
A bioinspired bead-on-string Ag/AgCl heterostructure for stable ion-electron transduction in stretchable dry electrodes is developed, opening a route to long-term, high-fidelity wearable electrophysiological monitoring and personalized hands-free human-machine interaction.