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Melanie Mayes is an ORNL biogeochemist studying soil carbon cycling across varied ecosystems, including in urban environments. Credit: Genevieve Martin/ORNL, U.S. Dept. of Energy

Science has taken Melanie Mayes from Tennessee to the tropics, studying some of the most important ecosystems in the world.

ORNL scientists identified four amino acids key to signaling pathways in the PAN protein domain. Mutating any of those four resulted in disruption of the signal that tells cancer cells to multiply and spread in humans. Credit: Andy Sproles/ORNL, U.S. Dept. of Energy

Researchers at ORNL have definitively linked the function of a specific domain of proteins important in plant-microbe biology to a cancer trigger in humans, knowledge that had eluded scientists for decades.

Oak Ridge National Laboratory entrance sign

Steven Arndt, distinguished R&D staff member in the Nuclear Energy and Fuel Cycle Division at ORNL, began a one-year term on June 16 as the 68th President of the American Nuclear Society.

Oak Ridge National Laboratory’s Leah Broussard shows a neutron-absorbing "wall" that stops all neutrons but in theory would allow hypothetical mirror neutrons to pass through. Credit: Genevieve Martin/ORNL, U.S. Dept. of Energy

To solve a long-standing puzzle about how long a neutron can “live” outside an atomic nucleus, physicists entertained a wild but testable theory positing the existence of a right-handed version of our left-handed universe.

Jade Adams, owner of the popular Knoxville plant boutique Oglewood Avenue, was a member of the first cohort of 100Knoxville. ORNL is sponsoring the sixth cohort of the mentorship and support program for Black founders of businesses. Credit: 100Knoxville/Knoxville Entrepreneur Center

ORNL is sponsoring a cohort of 100Knoxville, a five-week mentorship and support program for Black founders of businesses.

From left, Craig Moss, Major Micah McCracken, Tim Delk and Lt. Col. Jessica Critcher pose with awards given at a small ceremony recognizing ORNL’s 2022 military fellows. Credit: Genevieve Martin/ORNL, U.S. Dept. of Energy

In front of family and friends, Lt. Col. Jessica Critcher and Maj. Micah McCracken gave their final report on their eye-opening year as ORNL military fellows.

ORNL polymer scientists Tomonori Saito, left, and Sungjin Kim upcycled waste plastic to create a stronger, tougher, solvent-resistant material for new additive manufacturing applications. Credit: Genevieve Martin/ORNL, U.S. Dept. of Energy

ORNL researchers have developed an upcycling approach that adds value to discarded plastics for reuse in additive manufacturing, or 3D printing.

ORNL researchers deploy a gas trap to measure ebullitive (bubbling) emissions of methane at the Melton Dam in East Tennessee. The trap is deployed for ~ 24 hours to allow gas to accumulate in the trap. Credit: Carlos Jones/ORNL, US Dept. of Energy

As the United States moves toward more sustainable and renewable sources of energy, hydropower is expected to play a pivotal role in integrating more intermittent renewables like wind and solar to the electricity grid

Doug Kothe

Doug Kothe has been named associate laboratory director for the Computing and Computational Sciences Directorate at ORNL, effective June 6.

Microorganisms may provide hope that peatlands can withstand hotter temperatures in a changing climate.

Microorganisms may provide hope that peatlands can withstand hotter temperatures in a changing climate.