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Media Contacts
![Image of outerspace](/sites/default/files/styles/list_page_thumbnail/public/2023-04/Dark%20Matter%20Thumbnail.png?h=c673cd1c&itok=vaZLUOBP)
Few things carry the same aura of mystery as dark matter. The name itself radiates secrecy, suggesting something hidden in the shadows of the Universe.
![NASA scientist Andrew Needham used the MARS neutron imaging instrument at Oak Ridge National Laboratory to study moon rock samples brought back from the Apollo missions. Credit: Jeremy Rumsey/ORNL, U.S. Dept. of Energy](/sites/default/files/styles/list_page_thumbnail/public/2023-04/Needham%204%20crop.jpg?h=af6b00fd&itok=fNceymad)
How did we get from stardust to where we are today? That’s the question NASA scientist Andrew Needham has pondered his entire career.
![Oak Ridge National Laboratory led a team of scientists to design a molecule that disrupts the infection mechanism of the SARS-CoV-2 coronavirus and could be used to develop new treatments for COVID-19 and future virus outbreaks. Credit: Michelle Lehman/ORNL, U.S. Dept. of Energy](/sites/default/files/styles/list_page_thumbnail/public/2023-03/Picture1_0.png?h=d55ce37e&itok=Q2qLUWnE)
A team of scientists led by the Department of Energy’s Oak Ridge National Laboratory designed a molecule that disrupts the infection mechanism of the SARS-CoV-2 coronavirus and could be used to develop new treatments for COVID-19 and other viral diseases.
![ORNL chemist and YO-STEM founder Candice Halbert focuses her professional time operating the Liquids Reflectometer at ORNL’s Spallation Neutron Source. Credit: Carlos Jones/ORNL, U.S. Dept. of Energy](/sites/default/files/styles/list_page_thumbnail/public/2023-03/2023-P01547_0.jpg?h=c6980913&itok=_Nqa4RXh)
A chemist from Oak Ridge National Laboratory attracted national attention when her advocacy for science education made People magazine’s annual “Women Changing the World” issue.
![ORNL engineer Ahmed Elatar explained his profession to students in Jessica Everitt’s 2nd grade class at Hardin Valley Elementary School in Knoxville, Tennessee, during Engineers Week. Credit: Jessica Everitt](/sites/default/files/styles/list_page_thumbnail/public/2023-03/Picture1.jpg?h=10cc56cf&itok=xS5LgH5E)
Nine engineers from ORNL visited 10 elementary and middle school classrooms in three school districts during National Engineers Week, Feb. 21 to 24, 2023, describing and demonstrating the excitement of the engineering profession to more than 300 Tennessee students.
![Artist’s conceptual drawing illustrates the novel energy filtering technique using neutrons that enabled researchers at ORNL to freeze moving germanium telluride atoms in an unblurred image. The images offered key insights into how the material produces its outstanding thermoelectric performance. Credit: Jill Hemman/ORNL, U.S. Dept. of Energy](/sites/default/files/styles/list_page_thumbnail/public/2023-03/23-G02345_VariableShutter_0.png?h=68c90eda&itok=LLAHAeOZ)
Scientists have long sought to better understand the “local structure” of materials, meaning the arrangement and activities of the neighboring particles around each atom. In crystals, which are used in electronics and many other applications, most of the atoms form highly ordered lattice patterns that repeat. But not all atoms conform to the pattern.
![UKAEA will provide novel fusion materials to be irradiated in ORNL’s HFIR facility over the next four years. From left, Kathy McCarthy, Jeremy Busby, Mickey Wade, Prof Sir Ian Chapman (UKAEA CEO), Cynthia Jenks and Yutai Kato will represent this new partnership. Not pictured: Dr. Amanda Quadling, UKAEA’s Director of Materials Research Facility. Credit: Genevieve Martin/ORNL, U.S. Dept. of Energy](/sites/default/files/styles/list_page_thumbnail/public/2023-03/ukaea_0.png?h=781886b5&itok=8TMsXYxx)
ORNL has entered a strategic research partnership with the United Kingdom Atomic Energy Authority, or UKAEA, to investigate how different types of materials behave under the influence of high-energy neutron sources. The $4 million project is part of UKAEA's roadmap program, which aims to produce electricity from fusion.
![From left are UWindsor students Isabelle Dib, Dominik Dziura, Stuart Castillo and Maksymilian Dziura at ORNL’s Neutron Spin Echo spectrometer. Their work advances studies on a natural cancer treatment. Credit: Genevieve Martin/ORNL, U.S. Dept. of Energy](/sites/default/files/styles/list_page_thumbnail/public/2023-03/2022-P14758_0.jpg?h=c6980913&itok=YJLFDsPp)
A scientific instrument at ORNL could help create a noninvasive cancer treatment derived from a common tropical plant.
![Heat is typically carried through a material by vibrations known as phonons. In some crystals, however, different atomic motions — known as phasons — carry heat three times faster and farther. This illustration shows phasons made by rearranging atoms, shown by arrows. Credit: Jill Hemman/ORNL, U.S. Dept. of Energy](/sites/default/files/styles/list_page_thumbnail/public/2023-02/23-G01840_Phason_Manly_proof3_0.png?h=10d202d3&itok=3NpjriWi)
Warming a crystal of the mineral fresnoite, ORNL scientists discovered that excitations called phasons carried heat three times farther and faster than phonons, the excitations that usually carry heat through a material.
![A control room monitor at Oak Ridge National Laboratory’s Spallation Neutron Source displays the power level of 1555 kilowatts (1.55 megawatts), a world record for a linear accelerator used for neutron research. Credit: Jeremy Rumsey/ORNL](/sites/default/files/styles/list_page_thumbnail/public/2023-02/Control%20room%20screen%20for%201555%20kW%20Feb%2016%202023%20cropped%20tight%20%28002%29_2.jpg?h=74a9cfdb&itok=_erI3ZFX)
ORNL's Spallation Neutron Source set a world record when its linear accelerator reached an operating power of 1.55 megawatts, which improves on the facility’s original design capability.