Tag

Supercomputers

All articles tagged with #supercomputers

The Spin Factor: Rotation Drives Element Mixing in Red Giants
science1 day ago

The Spin Factor: Rotation Drives Element Mixing in Red Giants

Researchers using high-resolution 3D simulations on powerful supercomputers found that stellar rotation greatly enhances the mixing of elements from a star’s core to its surface, explaining observed chemical changes in red giants; rotating stars mix materials over 100 times faster than non-rotating ones, revealing rotation as a key driver of stellar evolution and informing predictions for the Sun’s future.

Most cislunar satellite orbits from 1 million simulations fail to stay stable over years
space7 days ago

Most cislunar satellite orbits from 1 million simulations fail to stay stable over years

Lawrence Livermore National Laboratory scientists used two supercomputers to simulate about 1 million trajectories of cislunar satellites between Earth and the Moon. While roughly 54% remained stable for at least a year, only about 9.7% stayed stable over a six-year span — amounting to around 97,000 stable orbits. The results, published in 2025 in Research Notes of the AAS and shared on arXiv, underscore the complexity of predicting cislunar dynamics due to the Moon’s and Earth’s gravitational influences and solar effects, but the data are open for future research on space infrastructure and orbit selection.,

Researchers Plan Human-Brain-Scale Simulation on Exascale Supercomputer
technology1 month ago

Researchers Plan Human-Brain-Scale Simulation on Exascale Supercomputer

Researchers at the Jülich Research Centre in Germany plan to simulate a human-brain-scale neural network by integrating models of brain regions on the JUPITER exascale supercomputer, following earlier work mapping a fruit-fly brain and a recent scalable spiking neural network demonstration; while this could markedly advance computational neuroscience beyond prior efforts like the Human Brain Project, experts caution that such simulations won't 'build brains' and may still only scratch the brain's mysteries.

Nvidia Unveils New AI Chips and Models to Boost Autonomous Vehicles and AI Demand
technology1 month ago

Nvidia Unveils New AI Chips and Models to Boost Autonomous Vehicles and AI Demand

Nvidia announced its new Vera Rubin superchip platform at CES 2026, featuring six new chips designed for large-scale AI computing, aimed at hyperscalers like Microsoft and Google. The chips are expected to improve AI efficiency significantly, with the Vera Rubin superchip combining a CPU and GPUs. While the release date remains uncertain, Nvidia assured the chips will launch later this year, marking a major development in AI hardware.

Google's Quantum Echoes Algorithm Marks a Major Leap Toward Practical Quantum Computing
science4 months ago

Google's Quantum Echoes Algorithm Marks a Major Leap Toward Practical Quantum Computing

Google's Quantum AI team reports that their quantum processor, Willow, ran a complex physics algorithm called Quantum Echoes, based on Out-of-Time-Order Correlators (OTOCs), which solved a real-world problem thousands of times faster than the world's most powerful supercomputers, marking a significant step toward practical quantum advantage.

NASA Supercomputers Predict Earth's End Date
science4 months ago

NASA Supercomputers Predict Earth's End Date

NASA and Japanese researchers used supercomputers to estimate that Earth's surface will become uninhabitable for all life by around the year 1,000,002,021, due to the sun's increasing heat, with humans facing earlier environmental collapse from climate change and atmospheric changes. The study emphasizes the importance of preparing for Earth's eventual uninhabitability, including exploring space colonization options.

Scientists Warn of City-Destroying Quakes Amid Failing Protections
science-and-technology6 months ago

Scientists Warn of City-Destroying Quakes Amid Failing Protections

Scientists using supercomputers through the EQSIM project are simulating earthquake dynamics with unprecedented detail, revealing that smaller quakes can sometimes cause more damage than larger ones due to geological factors, and providing critical data to improve infrastructure resilience and disaster preparedness in earthquake-prone areas.

NASA Supercomputers Uncover Greenland's Melting Ice Impact on Marine Ecosystems
science6 months ago

NASA Supercomputers Uncover Greenland's Melting Ice Impact on Marine Ecosystems

NASA-supported research using supercomputers has revealed that melting glaciers in Greenland, particularly the Jakobshavn Glacier, are releasing nutrients that boost phytoplankton growth, which could impact marine food webs and carbon cycling, with broader implications for understanding climate change effects on ocean ecosystems worldwide.

science-and-technology7 months ago

Exploring America's Secret Nuclear Labs

The article explores America's secret nuclear weapons labs, detailing how advanced experiments like laser fusion at NIF and powerful supercomputers like El Capitan are used to maintain and develop nuclear arsenals, especially as testing is restricted, highlighting the technological and strategic importance of these facilities in modern deterrence and energy research.