News

Climate models overestimate natural variability

Dec. 10, 2020- 
By looking at satellite measurements of temperature changes in the lower layer of Earth’s atmosphere, scientists found that climate models may have overestimated the decade-to-decade natural variability of temperature. Lawrence Livermore National Laboratory (LLNL) statistician Giuliana Pallotta and climate scientist Benjamin Santer created a statistical framework to comprehensively...

Lawrence Livermore National Security announces recipients of annual Community Gift Program

Dec. 9, 2020- 
Lawrence Livermore National Security, LLC (LLNS), the contract manager for Lawrence Livermore National Laboratory (LLNL), has announced the recipients for the 2020 LLNS Community Gift Program. These gifts, totaling $150,000, reflect LLNS' commitment to local communities. LLNS received applications totaling more than $260,000 in requests. Thirty applications were selected for awards...

LLNL’s de Supinski earns prestigious IEEE Fellowship

Dec. 9, 2020- 
IEEE, the world's largest technical professional organization, announced it has elevated Bronis de Supinski to the rank of fellow, recognizing Lawrence Livermore National Laboratory's (LLNL) Livermore Computing’s chief technology officer (CTO) for his leadership in the design and use of large-scale computing systems. The prestigious IEEE fellow distinction, which takes effect Jan. 1, is...

Dig this – Livermorium Park breaks ground

Dec. 8, 2020- 
Moving a few shovelfuls closer to reality, Livermore Mayor John Marchand and Lawrence Livermore National Laboratory Director Bill Goldstein broke ground on Livermorium Park Thursday afternoon. When completed, the park will pay perpetual tribute to the Lab’s work on element 116, Livermorium. Coincidentally, the park is located at 116 S. Livermore Ave., in the heart of the Livermore Plaza. ...

Microjets are faster than a speeding bullet

Dec. 8, 2020- 
When a shock wave travels through material and reaches a free surface, chunks of material can break away and fly off at high speeds. If there are any defects on the surface, the shock forms microjets that travel faster than a speeding bullet. Understanding how these microjets form and how they interact with material help to improve spacecraft shielding and understanding a planetary...

NeurIPS papers aim to improve understanding and robustness of machine learning algorithms

Dec. 7, 2020- 
The 34th Conference on Neural Information Processing Systems (NeurIPS) is featuring two papers advancing the reliability of deep learning for mission-critical applications at Lawrence Livermore National Laboratory (LLNL). The most prestigious machine learning conference in the world, NeurIPS began virtually on Dec. 6. The first paper describes a framework for understanding the effect of...

Lab study of droplet dynamics advances 3D printing

Dec. 3, 2020- 
A team of Lawrence Livermore National Laboratory (LLNL) scientists has simulated the droplet ejection process in an emerging metal 3D printing technique called “Liquid Metal Jetting” (LMJ), a critical aspect to the continued advancement of liquid metal printing technologies. In the paper, the team describes the simulating of metal droplets during LMJ, a novel process in which molten...

Researchers measure electron emission to improve understanding of laser-based metal 3D printing

Dec. 2, 2020- 
Lawrence Livermore National Laboratory (LLNL) researchers have taken a promising step in improving the reliability of laser-based metal 3D printing techniques by measuring the emission of electrons from the surface of stainless steel during laser processing. Researchers collected thermionic emission signals from 316L stainless steel under laser powder bed fusion (LPBF) conditions using a...

NIF scholar turns internship into unique experience

Dec. 2, 2020- 
Alexus “Lexi” Warchock was initially disappointed when she learned the NIF & Photon Science Summer Scholar Program would be continuing — but as a virtual internship. “I was upset knowing I would miss out on seeing firsthand the amazing (Lab) facility and interacting with other Lab employees,” the University of Michigan-Dearborn senior said. “My dream of moving out from Michigan and living...

Former LLNL intern makes history when she is named first Black woman to lead brigade at Naval Academy

Dec. 1, 2020- 
Sydney Barber, former intern at Lawrence Livermore National Laboratory (LLNL), is making history at the United States Naval Academy. It was recently announced that 1st class midshipman Barber will become brigade commander next semester, the highest leadership position in the brigade, making her the first Black woman to be named in the role. The first female brigade commander was appointed...

Lab scientists among most cited researchers worldwide

Nov. 30, 2020- 
Fifty-seven researchers from Lawrence Livermore National Laboratory (LLNL) were among the top 2 percent of the most cited researchers worldwide throughout their careers, according to research on metascience by Stanford University. Metascience is the "study of studies" using scientific methods. Stanford University professor John Loannidis worked alongside U.S.-based Kevin Boyack and the...

Examining climate effects of regional nuclear exchange

Nov. 30, 2020- 
A team of Lawrence Livermore National Laboratory (LLNL) researchers has found that the global climatic consequences of a regional nuclear weapons exchange could range from a minimal impact to more significant cooling lasting years. The five LLNL scientists examined the potential for global climate changes from large urban fires ignited in a hypothetical regional nuclear exchange of 100 15...

Girls Who Code – ‘Big’ program goes virtual

Nov. 24, 2020- 
Livermore High School freshman Amber Belk is focused on studying chemical engineering in college, but through the Girls Who Code – "Big" program, she gained a new appreciation for how high performance computers that can model the types of molecules she will be studying. “Writing software codes and using the Linux operating system was really fun,” Belk said. "I really enjoyed the...

Cynthia Rivera selected to lead Operations & Business

Nov. 23, 2020- 
Cynthia Rivera has been named Lawrence Livermore National Laboratory’s (LLNL's) principal associate director for Operations & Business (PAD/O&B), Lab Director Bill Goldstein announced today. She will assume her responsibilities Jan 4. Rivera was chosen for this key Laboratory senior leadership position following an extensive national search. As the PAD/O&B, she will lead the...

3D printed electrodes free the gas

Nov. 23, 2020- 
Alkaline water electrolysis has been touted as a path to establish a hydrogen economy by converting intermittent renewable energies into clean hydrogen-based chemical energy. However, current technology has achieved only low current densities and voltage efficiencies. To make electrolysis more resourceful, a Lawrence Livermore National Laboratory (LLNL) team partnered with the U...

Meteorites might have kick-started life on early Earth

Nov. 20, 2020- 
The incorporation of the biologically vital element phosphorus into material found in living species may have formed during impact from astrophysical bodies on early Earth. NASA’s Exobiology Program has awarded Lawrence Livermore National Laboratory (LLNL) senior scientist Nir Goldman a three-year grant to research meteorite impacts on Earth. Goldman is seeking to understand the role...

LLNL, IBM win SC20 ‘Test of Time’ for Blue Gene/L

Nov. 20, 2020- 
A team of current and former Lawrence Livermore National Laboratory (LLNL) and IBM scientists won the annual “Test of Time” award at the 2020 Supercomputing Conference on Nov. 19 for a paper outlining LLNL’s Blue Gene/L supercomputer. Published by the Supercomputing Conference in 2002, the paper was the first peer-reviewed overview article to disclose details of Blue Gene/L, including its...

HPC4Energy Innovation kicks off fall 2020 solicitation

Nov. 19, 2020- 
The High Performance Computing for Energy Innovation (HPC4EI) Program, managed by Lawrence Livermore National Laboratory (LLNL) for the U.S. Department of Energy (DOE), is seeking new industry proposals for short-term projects that could benefit from world-class DOE high performance computing (HPC) and expertise. Under the fall 2020 HPC4EI solicitation, DOE’s Office of Energy Efficiency...

3D-printed glass enhances optical design flexibility

Nov. 18, 2020- 
Lawrence Livermore National Laboratory (LLNL) researchers have used multi-material 3D printing to create tailored gradient refractive index glass optics that could make for better military specialized eyewear and virtual reality goggles. The new technique could achieve a variety of conventional and unconventional optical functions in a flat glass component (with no surface curvature)...

Model for COVID-19 drug discovery a Gordon Bell finalist

Nov. 17, 2020- 
A machine learning model developed by a team of Lawrence Livermore National Laboratory (LLNL) scientists to aid in COVID-19 drug discovery efforts is a finalist for the Gordon Bell Special Prize for High Performance Computing-Based COVID-19 Research. Using Sierra, the world’s third fastest supercomputer, LLNL scientists created a more accurate and efficient generative model to enable...