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The world’s most powerful supercomputer, El Capitan, has been officially launched at the Lawrence Livermore National Laboratory (LLNL) in California. Built at a cost of $600 million, the system has been designed to manage highly classified national security tasks. The primary objective of the supercomputer is to ensure the security and reliability of the U.S. nuclear stockpile in the absence of underground testing, which has been prohibited since 1992. Research in high-energy-density physics, material discovery, nuclear data analysis, and weapons design will be conducted, along with other classified operations.

Performance and Capabilities

According to reports, El Capitan became the fastest supercomputer globally after achieving 1.742 exaFLOPS in the High-Performance Linpack (HPL) benchmark. The system has a peak performance of 2.746 exaFLOPS, making it the third machine ever to reach exascale computing speeds. The measurement, taken in floating-point operations per second (FLOPS), represents the ability of the supercomputer to perform one quintillion (10^18) calculations per second.

As reported by space.com, the second-fastest supercomputer, Frontier, located at Oak Ridge National Laboratory in Illinois, has recorded a standard performance of 1.353 exaFLOPS, with a peak of 2.056 exaFLOPS. El Capitan’s significant advancement marks a leap in computational capabilities within high-performance computing.

Technical Specifications

As reported by The Next Platform, El Capitan is powered by over 11 million processing and graphics cores distributed across 44,544 AMD MI300A accelerated processing units. These units incorporate AMD EPYC Genoa CPUs, AMD CDNA3 GPUs, and shared computing memory. Each processing unit includes 128 gigabytes of high-bandwidth memory, designed to optimise computational efficiency while minimising power consumption.

Development and Commissioning

Reports indicate that construction of El Capitan began in May 2023, with the system going online in November 2024. The official dedication took place on January 9, 2025. The supercomputer was commissioned by the U.S. Department of Energy’s CORAL-2 program as a successor to the Sierra supercomputer, which was deployed in 2018 and currently ranks 14th in the latest Top500 list of most powerful supercomputers.

With El Capitan’s full-scale deployment, advancements in national security research and computational science are expected to reach unprecedented levels.

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MIT Detects Traces of a Lost ‘Proto Earth’ Deep Beneath Our Planet’s Surface

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MIT researchers have discovered rare isotopic traces of a “proto Earth” that existed before the giant impact that shaped our modern planet. Found deep in ancient rocks, these potassium isotope signatures reveal remnants of Earth’s earliest material, offering fresh insight into the planet’s formation and the solar system’s earliest history.

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Astronomers Detect Heavy Water in Planet-Forming Disk Around Young Star

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Scientists have detected heavy water in the planet-forming disk around young star V883 Orionis, confirming the water existed long before the star formed. The discovery, made using ALMA, shows that water’s origins trace back to ancient interstellar clouds, linking molecular gas, comets, and planetary systems across billions of years.

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NASA Experiment Shows Martian Ice Could Preserve Signs of Ancient Life

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A NASA study suggests that traces of ancient life could be locked in Martian ice. Lab tests freezing bacteria under Mars-like radiation revealed amino acids can persist for tens of millions of years. Researchers say pure ice offers protection, making Mars’ frozen regions ideal for searching preserved biomolecules.

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