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Imaging gas-phase methyl radicals

News Article, March 3, 2025 • Positive and negative correlations of measured gas-phase methyl and formaldehyde with predicted surface coverages Scientists at Sandia are studying how certain chemical reactions happen on surfaces, especially when using special techniques that allows them to see what is occurring while the reactions are taking place. This is important because many...

Imaging the visible emissions from plasmas in pulsed power experiments

News Article, March 16, 2023 • The center section of Sandia's Z Machine Low density plasmas are predicted to impact Sandia’s Z machine experiments in a variety of ways. Magnetic Resonance Tomography instability development during the target implosion can lead to broad trailing density profiles and potentially redistribute current away from the on-axis stagnation region. Low...

A technician gets a target ready for the center section in the Z machine pulsed power facility

Improving assurance of high-consequence systems using formal methods and automated reasoning

News Article, July 14, 2025 • Error from imperfect computer representations of numbers when visualizing a sphere at 1km and 20,000km distance from an observer. Computers typically represent numbers one of two ways: fixed-point (via integers) and floating-point numbers. Floating point provides improved efficiency and productivity, but errors can accumulate if not managed carefully. Error from...

Improving predictive capability in REHEDS simulations with fast, accurate, and consistent nonequilibrium material properties

News Article, June 22, 2023 • Sandia scientist Stephanie Hansen was elected Fellow of the American Physical Society by its Division of Plasma Physics. (Photo by Randy Montoya) Predictive design of experiments in Radiation, Electrical, and High Energy Density Science (REHEDS) requires knowledge of material properties (e.g., equations of state (EOS), transport coefficients, and radiation physics). Interpreting...

Improving understanding of microbial roles in permafrost carbon release

News Article, June 2, 2025 • As permafrost thaws, it exposes ancient organic matter that microbes can use as fuel. This process contributes to the release of gases like carbon dioxide, methane (CH₄) and volatile organic compounds (VOCs). In areas like the Yedoma permafrost, which holds large amounts of frozen organic material, the formation of thermokarst...

Improving/testing machine learning methods for benchmarking soil carbon dynamics representation of land surface models

News Article, June 7, 2023 • Sandia soil scientist Umakant Mishra starts his hike to the base camp of Mount Everest. (Photo courtesy of Umakant Mishra) Representation of soil organic carbon (SOC) dynamics in Earth system models (ESM) is a key source of uncertainty in predicting carbon climate feedbacks. The magnitude of this uncertainty can be...

Umakant Mishra stands at the bottom of Mount Everest.

Integrase-On-Demand (IOD): simplifying site-specific DNA integration across diverse microbes

News Article, August 24, 2026 • As part of the Intrinsic Control for Genome and Transcriptome Editing in Communities (InCoGenTEC) team, Sandia researchers and academic partners developed a new method called Integrase-On-Demand (IOD), which makes it easier to insert large stretches of DNA into the chromosomes of a wide variety of bacteria, even those that are...

Integrated Materials Research Laboratory (IMRL)

Facility • IMRL integrates research from atomic scale to full scale components, investigates organic materials, advanced alloys, electronic and photonic semiconductors, high temperature superconductors, ceramics, quantum systems, and laser, optical and dielectric materials.

Integrated Materials Research Laboratory Facility

International team makes breakthrough in the chemistry of atmospheric aerosol formation.

News Article, March 14, 2024 • Figure 1 — Sequential insertion reactions of Criegee intermediates (CH2OO) produce low volatility, highly oxygenated molecules that may form organic aerosols in the troposphere. (Figure courtesy of Ellen Weiss, Argonne National Laboratory) A multidisciplinary team has combined measurements in the Amazon forest with experimental and theoretical kinetics to show the...

Ion Beam Laboratory (IBL)

Facility • The IBL enables scientists to study and modify materials systems using ion and electron accelerators.

Jessica K. Kustas

Page • Jessica K. Kustas Senior Member of the Technical Staff Analytical Chemistry Dr. Jessica Kustas is an analytical chemist at Sandia National Laboratories located in Albuquerque, New Mexico. Recruited from the U.S. Army Corps of Engineers, Champaign Illinois, her career has been focused heavily on mass spectrometry analysis of materials and...

Joint BioEnergy Institute (JBEI)

Facility • JBEI is a DOE Bioenergy Research Center dedicated to developing advanced biofuels—liquid fuels derived from the solar energy stored in plant biomass that can replace gasoline, diesel, and jet fuels.

Joint Test Assembly (JTA)

Facility • JTA program allows critical assessment of weapon systems, Department of Defense (DOD) platforms, and support personnel performance.

Krupa Ramasesha named Fulbright US Scholar

News Article, August 14, 2025 • The Department of State named chemist Krupa Ramasesha to the Fulbright U.S. Scholar Program to Austria for the 2025-2026 academic year. During her time in Austria, Krupa will hold the Fulbright-NAWI Graz Visiting Professorship in the Natural Sciences at the Institute of Experimental Physics at Graz University of Technology. In this position,...

Laboratory Directed R&D

Page • Locating lost qubits Recycling products from the inside out Landing planes with cell phone signals Creating the mother of all motion sensors High-risk, potentially high-payoff science and engineering research is at the heart of Sandia’s Laboratory Directed Research & Development (LDRD) program. This program provides the flexibility needed to anticipate...

Laser Application Facility (LAZAP)

Facility • LAZAP tests and calibrates U.S. reconnaissance and Global Positioning System (GPS) satellites. The facility propagates visible high-powered lasers of multiple wavelengths through the atmosphere with a large aperture beam director.

High-powered laser directed at the sky at dusk

Leveraging machine learning to refine material models for fusion applications

News Article, July 14, 2025 • To enable future innovative designs for fusion platforms on the Z machine, a Sandia LDRD team developed an automated framework for constructing material models. This directly addressed the challenge of creating comprehensive material models that can leverage machine learning and integrate data from multi-fidelity datasets, something vital for uncertainty quantification...

Lightning Facility

Page • The Sandia Lightning Simulator (SLS) allows test objects to be subjected to simulated lightning currents up to severe levels. The SLS can be configured to produce either one or two simulated strokes, with or without continuing current. It can deliver a maximum peak current of 200 kA for a single...

Lignin processing with machine learning approaches

News Article, March 3, 2025 • The schematic diagram for screening of solvents for lignin dissolution. Using ionic liquids (IL) to break down and make use of lignin is really important for creating eco-friendly energy sources and a sustainable economy. Scientists at Sandia, who are part of the Joint Bioenergy Institute (JBEI), are looking closely at...

Materials and Advanced Manufacturing

Page • Award-winning materials scientists Creating cleaner ways to purify critical metals Creating products that kill viruses, bacteria and fungi Fundamental research in materials science provides the solid technical basis needed for Sandia’s engineering decisions and future mission work. This research includes innovative and hypothesis-driven science efforts that combine theory, computation, and...

Materials Science and Engineering Center (MSE)

Facility • MSE provides knowledge of materials structure, properties, and performance and the processes to produce, transform, and analyze materials.

Materials science researcher is Sandia’s first outbound Faculty Loan joint appointee

News Article, June 22, 2023 • Jonathan Pegues, a researcher in Sandia’s Coatings & Additive Manufacturing department, was approved to be the first formally approved Sandia outbound Faculty Loan joint appointee. Pegues’ joint appointment is an agreement between Sandia and Auburn University’s (AU) National Center for Additive Manufacturing Excellence (NCAME). The NCAME is a collaborative effort...