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OLCF science articles.

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Celeritas code sets fast pace for particle physics discoveries

by Dawn Levy High energy physicists run on a treadmill that keeps speeding up. Their collider experiments smash particles at dazzling speeds and energies. Detectors identify and track the multitudes of smaller particles that fly out. With powerful new colliders crashing particles at ever-increasing energies, even more daughter particles are…
Katie Bethea
November 19, 2025
FeaturedPeopleScience

OLCF’s Bronson Messer Named APS Fellow

Bronson Messer is the Director of Science at the Oak Ridge Leadership Computing Facility. Credit: Carlos Jones/ORNL, U.S. Dept. of Energy Bronson Messer, a distinguished staff scientist at the Department of Energy’s Oak Ridge Leadership Computing Facility (OLCF) at Oak Ridge National Laboratory, has been named a Fellow of the…
Angela Gosnell
November 14, 2025
FeaturedScience

ORNL, NVIDIA, HPE advance quantum computing, AI and HPC for science

The Department of Energy’s Oak Ridge National Laboratory, NVIDIA, and HPE will seek to open new insights into quantum computing and identify potential strategies toward the integration of quantum, artificial intelligence and high-performance computing for scientific discovery. “Maintaining America’s leadership in high-performance computing requires us to build the bridge to…
Matt Lakin
November 3, 2025
FeaturedScience

Frontier Simulations Pierce Mysteries of Galactic Nuclei

To probe the mysteries of how galaxies evolve over time, scientists needed a supercomputer with out-of-this-world computational power. The results of a study conducted on the Frontier supercomputer at the Department of Energy’s Oak Ridge National Laboratory offer the clearest portrait so far of how some galaxies regulate the energy produced by supermassive black…
Matt Lakin
September 30, 2025
FeaturedScience

Forging Fusion

The nuclear reactions that fuel the sun could soon be harnessed to generate electricity on Earth — with help from supercomputers at the Department of Energy’s Oak Ridge National Laboratory. Type One Energy Group, a Knoxville-based startup, expects to build the world’s most advanced stellarator fusion device by 2030, with a pilot…
Matt Lakin
September 24, 2025
A person talking in a large room with many people sitting at long tables.FeaturedScienceTechnology

Users of Oak Ridge Leadership Computing Facility Gather for 21st Annual Meeting

The Oak Ridge Leadership Computing Facility (OLCF) welcomed computational scientists from around the world to its 2025 OLCF User Meeting at the Department of Energy’s Oak Ridge National Laboratory from Aug. 5 – 6. The event offered attendees an opportunity to share accomplishments, discuss challenges, and explore the road ahead for high-performance computing…
Angela Gosnell
September 9, 2025
ORNL researchers proposed a software architecture that would integrate emerging quantum computers with the world’s fastest supercomputing systems, such as ORNL’s exascale machine Frontier. Credit: Jason Smith/ORNL, U.S. Dept. of EnergyFeaturedScience

ORNL Study Plans Quantum-HPC Software Stack

A new study by researchers at the Department of Energy’s Oak Ridge National Laboratory traces a blueprint for a software architecture that would integrate emerging quantum computers with the world’s fastest supercomputing systems. Finding an effective approach to pair the two distinct computing platforms has become a prime focus for…
Matt Lakin
August 29, 2025
Dark background with splotches of light that look like connectivity waves through space.FeaturedScience

OLCF Upgrades Its Network Security Infrastructure

Cybersecurity at the Department of Energy’s Oak Ridge Leadership Computing Facility is under constant pressure from millions of unauthorized connection attempts each day. Now, a major upgrade to the facility’s monitoring system has strengthened defenses, reinforcing one of the nation’s most powerful computing resources against hidden threats. To address this…
Angela Gosnell
August 20, 2025
water moleculesFeaturedScience

Getting the Matrix of Life Right

More than a year ago, computational scientists at the Department of Energy’s Oak Ridge National Laboratory published a study in the Journal of Chemical Theory and Computation that raised a serious question about a long-standing methodology used by researchers who conduct molecular dynamics simulations involving water. What if using the standard…
Coury Turczyn
July 9, 2025
air-water interfaceFeaturedScience

Speeding Up Chemical Reactions

Using the now-decommissioned Summit supercomputer, researchers at the Department of Energy’s Oak Ridge National Laboratory ran the largest and most accurate molecular dynamics simulations yet of the interface between water and air during a chemical reaction. The simulations have uncovered how water controls such chemical reactions by dynamically coupling with…
Coury Turczyn
June 17, 2025
neutron star simulation ORNLFeaturedScience

Journey to the Center of a Neutron Star

For astrophysicists, neutron stars stand out as objects of irresistible fascination — perhaps, in part, because of how difficult they are to decipher. But calculations conducted on the Frontier supercomputer, located at the Department of Energy’s Oak Ridge National Laboratory, have revealed new clues about the inner workings of neutron…
Coury Turczyn
June 2, 2025
FeaturedScience

INCITE 2026 Call for Proposals

The Innovative and Novel Computational Impact on Theory and Experiment, or INICITE, program has announced the 2026 Call for Proposals, inviting researchers to apply for access to some of the world’s most powerful high-performance computing systems. The proposal submission window runs from April 11 to June 16, 2025, offering an…
Angela Gosnell
April 11, 2025