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Media Contacts
![Methanogen_mercury_study3.jpg Methanogen_mercury_study3.jpg](/sites/default/files/styles/list_page_thumbnail/public/Methanogen_mercury_study3.jpg?itok=a79hsOOv)
Biologists from Oak Ridge National Laboratory and the Smithsonian Environmental Research Center have confirmed that microorganisms called methanogens can transform mercury into the neurotoxin methylmercury with varying efficiency across species.
![ORNL is again hosting a workshop focused on the next generation of molten salt reactors. ORNL is again hosting a workshop focused on the next generation of molten salt reactors.](/sites/default/files/styles/list_page_thumbnail/public/news/images/05%20-%20NUCLEAR_Molten_Salt_Reactor_Workshop.jpg?itok=5mV4FIMW)
Experts focused on the future of nuclear technology will gather at Oak Ridge National Laboratory for the fourth annual Molten Salt Reactor Workshop on October 3–4.
![David Kropaczek directs the Consortium for Advanced Simulation of Light Water Reactors, a Department of Energy Innovation Hub headquartered at Oak Ridge National Laboratory. David Kropaczek directs the Consortium for Advanced Simulation of Light Water Reactors, a Department of Energy Innovation Hub headquartered at Oak Ridge National Laboratory.](/sites/default/files/styles/list_page_thumbnail/public/2016-P07859%5B2%5D%5B1%5D.jpg?itok=NRe8pBsS)
![ORNL Image](/sites/default/files/styles/list_page_thumbnail/public/2018-P06192-c3.jpg?itok=I3lvSVfo)
Mircea Podar has travelled around the world and to the bottom of the ocean in pursuit of scientific discoveries, but it is the uncharted territory he encounters when working with new microbes that inspires his research at ORNL.
![Plants in the warmest of several study areas at the SPRUCE experimental site remained green and functional up to six weeks longer than plants growing at ambient temperatures. Credit: Oak Ridge National Laboratory, U.S. Dept. of Energy Plants in the warmest of several study areas at the SPRUCE experimental site remained green and functional up to six weeks longer than plants growing at ambient temperatures. Credit: Oak Ridge National Laboratory, U.S. Dept. of Energy](/sites/default/files/styles/list_page_thumbnail/public/SPRUCE_for_Nature.jpg?itok=I3_XAiHF)
A futuristic experiment simulating warmer environmental conditions has shown that peatland vegetation responds to higher temperatures with an earlier and longer growth period.
![Researchers 3D printed molds for precasting concrete using the Big Area Additive Manufacturing, or BAAM™, system at DOE’s Manufacturing Demonstration Facility at ORNL. Complex, durable mold designs can be produced in less time than traditional wood or fib](/sites/default/files/news/images/02%20-%203D-printed_precast_concrete_molds.gif)
The construction industry may soon benefit from 3D printed molds to make concrete facades, promising lower cost and production time. Researchers at Oak Ridge National Laboratory are evaluating the performance of 3D printed molds used to precast concrete facades in a 42-story buildin...
![The ORNL-developed site assessment tool, dubbed SMH Explorer, provides a platform to develop small modular hydropower technologies by identifying common physical and environmental characteristics in stream segments across the nation. Credit: Oak Ridge Nat The ORNL-developed site assessment tool, dubbed SMH Explorer, provides a platform to develop small modular hydropower technologies by identifying common physical and environmental characteristics in stream segments across the nation. Credit: Oak Ridge Nat](/sites/default/files/styles/list_page_thumbnail/public/05a%20-%20Alternate_site_assessment_0.png?itok=dzCelAf4)
Oak Ridge National Laboratory has created new tools to better understand the nation’s waterways and identify potential sites to generate hydropower—a domestic renewable energy resource. The tools allow users such as scientists, resource agencies and industry to access information ab...
![A stream classification system developed by ORNL researchers shows the influence of human activity on streams in the Eastern U.S. The map shows streams classified by their alteration status, highlighting the extent of networks that are impounded (magenta) A stream classification system developed by ORNL researchers shows the influence of human activity on streams in the Eastern U.S. The map shows streams classified by their alteration status, highlighting the extent of networks that are impounded (magenta)](/sites/default/files/styles/list_page_thumbnail/public/news/images/Picture1.png?itok=t96MiJpP)
![Rose Ruther and Jagjit Nanda have been collaborating to develop a membrane for a low-cost redox flow battery for grid-scale energy storage. Rose Ruther and Jagjit Nanda have been collaborating to develop a membrane for a low-cost redox flow battery for grid-scale energy storage.](/sites/default/files/styles/list_page_thumbnail/public/MembraneRoseJagjitFilterSmile.jpg?itok=p8-Q46wn)
Oak Ridge National Laboratory scientists have developed a crucial component for a new kind of low-cost stationary battery system utilizing common materials and designed for grid-scale electricity storage. Large, economical electricity storage systems can benefit the nation’s grid ...
![Ryan Kerekes is leader of the RF, Communications, and Cyber-Physical Security Group at Oak Ridge National Laboratory. Photos by Genevieve Martin, ORNL. Ryan Kerekes is leader of the RF, Communications, and Cyber-Physical Security Group at Oak Ridge National Laboratory. Photos by Genevieve Martin, ORNL.](/sites/default/files/styles/list_page_thumbnail/public/Ryan%20Kerekes%20Profile%20lab1_0.jpg?itok=btnfhbaJ)
As leader of the RF, Communications, and Cyber-Physical Security Group at Oak Ridge National Laboratory, Kerekes heads an accelerated lab-directed research program to build virtual models of critical infrastructure systems like the power grid that can be used to develop ways to detect and repel cyber-intrusion and to make the network resilient when disruption occurs.