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Media Contacts
![This map illustrates the natural climate variability that affects the cold-season climate of the Central Southwest Asian region. Credit: Moetasim Ashfaq/ORNL](/sites/default/files/styles/list_page_thumbnail/public/2023-07/moet_pr_v2.png?h=0bda418b&itok=V62vm4cC)
As extreme weather devastates communities worldwide, scientists are using modeling and simulation to understand how climate change impacts the frequency and intensity of these events. Although long-term climate projections and models are important, they are less helpful for short-term prediction of extreme weather that may rapidly displace thousands of people or require emergency aid.
![This illustration shows how the TFIIH protein complex changes its structure to execute different functions. The TFIIH subunits are colored as follows: XPD red, p62 blue, p44 orange, p34 green, p52 purple, p8 light grey, XPB pink; MAT1 and XPA are shown in yellow, and DNA is cyan. Credit: Chunli Yan/Georgia State University](/sites/default/files/styles/list_page_thumbnail/public/2023-08/tfiih-protein.png?h=55be468c&itok=RQ1wwApy)
Transcription factor IIH is a veritable workhorse among the protein complexes that regulate human cell activity, playing critical roles both in synthesizing DNA and in enabling DNA repair. But how can one protein assembly participate in two such vastly different jobs? A team of researchers led by chemistry professor Ivaylo Ivanov of Georgia State University used the Summit supercomputer at ORNL to tackle that question.
![The cosmic web shown in detail with other critical components of the simulations including dark matter, gas, temperature and neutral hydrogen density. The last panel shows the absorption features of the Lyman-alpha forest. Image credit: Bruno Villasenor/UCSC](/sites/default/files/styles/list_page_thumbnail/public/2023-09/figure_3%20copy.jpg?h=fd920bc7&itok=ziOcc9pk)
A research team from the University of California, Santa Cruz, have used the Oak Ridge Leadership Computing Facility’s Summit supercomputer to run one of the most complete cosmological models yet to probe the properties of dark matter.
![Reuben Budiardja, an Oak Ridge National Laboratory computational scientist, worked with the early users who helped prepare Frontier, the world’s first exascale supercomputer, for scientific operations. Credit: Carlos Jones/ORNL, U.S. Dept. of Energy](/sites/default/files/styles/list_page_thumbnail/public/2023-06/OLCF_Reuben_0.jpg?h=37d8d407&itok=xzEd2WaJ)
With the world’s first exascale supercomputer now fully open for scientific business, researchers can thank the early users who helped get the machine up to speed.
![Researchers at the Department of Energy’s Oak Ridge National Laboratory were the first to use neutron reflectometry to peer inside a working solid-state battery and monitor its electrochemistry.](/sites/default/files/styles/list_page_thumbnail/public/2023-06/23-G04141_Browning_proof2_0.png?h=27870e4a&itok=Tore760r)
Researchers at the Department of Energy’s Oak Ridge National Laboratory were the first to use neutron reflectometry to peer inside a working solid-state battery and monitor its electrochemistry.
![Herwig shared the impacts of neutron science with Secretary of Energy Jennifer Granholm during a tour of SNS in November 2021. Credit: Carlos Jones/ORNL, U.S. Dept. of Energy](/sites/default/files/styles/list_page_thumbnail/public/2023-06/2021-P09386_0.jpg?h=dce8aa9f&itok=BTb6xmeI)
Ken Herwig's scientific drive crystallized in his youth when he solved a tough algebra word problem in his head while tossing newspapers from his bicycle. He said the joy he felt in that moment as a teenager fueled his determination to conquer mathematical mysteries. And he did.
![3D supernova simulations](/sites/default/files/styles/list_page_thumbnail/public/2023-06/Supernova%20square_0.png?h=8a7fc05e&itok=nltq-f5M)
As a result of largescale 3D supernova simulations conducted on the Oak Ridge Leadership Computing Facility’s Summit supercomputer by researchers from the University of Tennessee and Oak Ridge National Laboratory, astrophysicists now have the most complete picture yet of what gravitational waves from exploding stars look like.
![CFM’s RISE open fan engine architecture. Image: GE Aerospace](/sites/default/files/styles/list_page_thumbnail/public/2023-06/02-CFM_RISE_Program_Open_Fan%5B1%5D_0.jpg?h=790be497&itok=Ulzp5W_p)
To support the development of a revolutionary new open fan engine architecture for the future of flight, GE Aerospace has run simulations using the world’s fastest supercomputer capable of crunching data in excess of exascale speed, or more than a quintillion calculations per second.
![The Quantum Science Center hosted its first in-person all-hands meeting at the Gaylord Opryland Resort & Convention Center on May 22–24, 2023. Credit: Teresa Hurt/ORNL, U.S. Dept. of Energy](/sites/default/files/styles/list_page_thumbnail/public/2023-06/K3cd1Y2o_0.jpg?h=71976bb4&itok=GJhAw59v)
In late May, the Quantum Science Center convened its first in-person all-hands meeting since the center was established in 2020. More than 120 QSC members gathered in Nashville, Tennessee to discuss the center’s operations, research and overarching scientific aims.
![Simulations performed on Oak Ridge National Laboratory’s Summit supercomputer generated one of the most detailed portraits to date of how turbulence disperses heat through ocean water under realistic conditions. Credit: Miles Couchman](/sites/default/files/styles/list_page_thumbnail/public/2023-06/Prandtl2_0.png?h=ae114f5c&itok=yd4B_sEF)
Simulations performed on the Summit supercomputer at ORNL revealed new insights into the role of turbulence in mixing fluids and could open new possibilities for projecting climate change and studying fluid dynamics.