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![Credit: NAIC Arecibo Observatory, a facility of the NSF; (INSET) Michelle Negron, National Science Foundation](/sites/default/files/styles/list_page_thumbnail/public/2023-08/ARECIBO_0.png?h=c2ee2dc6&itok=aDzexNCM)
For more than half a century, the 1,000-foot-diameter spherical reflector dish at the Arecibo Observatory in Puerto Rico was the largest radio telescope in the world. Completed in 1963, the dish was built in a natural sinkhole, with the telescope’s feed antenna suspended 500 feet above the dish on a 1.8-million-pound steel platform. Three concrete towers and more than 4 miles of steel cables supported the platform.
![Upgrades to the particle accelerator enabling the record 1.7-megawatt beam power at the Spallation Neutron Source included adding 28 high-power radio-frequency klystrons (red tubes) to provide higher power for the accelerator. Credit: Genevieve Martin/ORNL, U.S. Dept. of Energy](/sites/default/files/styles/list_page_thumbnail/public/2023-07/Klystrons1_0.jpg?h=6de9c450&itok=PbSmDYuy)
The Spallation Neutron Source at the Department of Energy's Oak Ridge National Laboratory set a world record when its particle accelerator beam operating power reached 1.7 megawatts, substantially improving on the facility’s original design capability.
![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.
![ORNL’s Yun Liu stands before one of the 10 laser comb-based beam diagnostics stations at the Spallation Neutron Source. The laser comb solves the longstanding problem of measuring changes in the beam across time. Credit: Genevieve Martin/ORNL, U.S. Dept. of Energy](/sites/default/files/styles/list_page_thumbnail/public/2023-06/2023-P05174_0_0.jpg?h=c6980913&itok=MH2NQJPT)
When opportunity meets talent, great things happen. The laser comb developed at ORNL serves as such an example.
![ORNL seismic researcher Chengping Chai placed seismic sensors on the ground at various distances from an ORNL nuclear reactor to learn whether they could detect its operating state. Credit: Carlos Jones/ORNL, U.S. Dept. of Energy](/sites/default/files/styles/list_page_thumbnail/public/2023-06/2023-P03398.jpg?h=3e43625b&itok=TXK8tthh)
Like most scientists, Chengping Chai is not content with the surface of things: He wants to probe beyond to learn what’s really going on. But in his case, he is literally building a map of the world beneath, using seismic and acoustic data that reveal when and where the earth moves.
![Neutron scattering experiments at the Spallation Neutron Source revealed how the dynamics between copper and oxygen make a special type of enzyme excel at breaking down biomass. Insights could lead to lowering the cost of biofuel production. Credit: Jill Hemman/ORNL, U.S. Dept. of Energy](/sites/default/files/styles/list_page_thumbnail/public/2023-05/23-G02576_Meilleur_0.png?h=b6717701&itok=jPIOwV6b)
Nonfood, plant-based biofuels have potential as a green alternative to fossil fuels, but the enzymes required for production are too inefficient and costly to produce. However, new research is shining a light on enzymes from fungi that could make biofuels economically viable.
![ORNL researchers used diamonds to compress materials to 1.2 million times ambient pressure and software to remove signal interference and extract data on pressure-induced atomic structures. Credit: Jill Hemman/ORNL, U.S. Dept. of Energy](/sites/default/files/styles/list_page_thumbnail/public/2023-05/23-G03399_DiamondAnvil_proof3_red_beams_0.png?h=36fc5f13&itok=cOUv6W8n)
For decades, scientists sought a way to apply the outstanding analytical capabilities of neutrons to materials under pressures approaching those surrounding the Earth’s core.
![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.