8legs: Chinese academy of sciences

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China claims leadership in space-based AI computing as it develops a space supercomputer in low-Earth orbit.
The project aims to integrate 10,000 high-performance computing cards for a real space supercomputer.
The United States is rushing to close the gap with greater funding and launch capabilities for space AI infrastructure.
Tech leaders like Elon Musk and Sundar Pichai are planning orbital satellites and data centers to power AI in space.
SpaceX intends to scale Starlink satellites to build orbital data centers, according to recent disclosures.
Google plans to launch space-based data centers as early as 2027, signaling early US momentum.
The moves reflect broader tech rivalry for global dominance in AI and next-generation connectivity.
Observers describe the race as inevitable as governments and firms boost space AI capabilities.
Analysts emphasize the growing role of space-based AI in future tech and connectivity.

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#2 out of 2

15h ago

New experiments show Earth’s lower mantle may store much more early water than previously believed, reshaping ideas about habitability.
Bridgmanite, the mantle’s most abundant mineral, can contain hundreds to nearly two thousand parts per million of water by weight.
Temperature, not pressure or composition, largely governs how much water bridgmanite stores as the mantle cools.
Magma-ocean crystallization models show the lower mantle could hold five to a hundred times more water than earlier estimates.
Early in Earth’s history, cooling magma oceans allowed bridging and crystallization to lock water into bridgmanite.
The study used NanoSIMS and atom probe tomography to confirm water is integrated into bridgmanite’s crystal structure.
If true, Earth’s deep-water reservoir could slowly resupply surface oceans and influence climate over geologic time.
Results may help explain why the upper mantle is relatively dry while the transition zone holds more water today.
The research suggests a deep-water reserve could recur in exoplanets during their magma-ocean phases, informing planetary habitability.

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