News

Climate ensembles help to identify detection time of human-caused climate signals

Sept. 24, 2019- 
By comparing observations to large ensembles of climate model simulations, scientists can now better isolate when human-caused climate change was first identifiable in observations. Large Initial Condition Ensembles (LEs) are simulations of climate change performed with a single climate model. An LE typically has between 30 and 100 individual “members” in order to probe the range of...

Six Lawrence Livermore scientists named Distinguished Members of Technical Staff

Sept. 19, 2019- 
Six Lawrence Livermore National Laboratory (LLNL) scientists have been named Distinguished Members of Technical Staff (DMTS) for their extraordinary scientific and technical contributions to the Laboratory and its missions, as acknowledged by their professional peers and the larger community. Chris Carson of the Global Security Directorate, Larry Fried of the Materials Science Division of...

Lab scholar makes impact on new diagnostic

Sept. 17, 2019- 
When Peter Nyholm became a NIF&PS Summer Scholar, he was following family tradition. Both of his parents had careers at Lawrence Livermore National Laboratory (LLNL) —his father as an electrical engineer and his mother as a nurse. Of his five siblings, two work at LLNL and another was previously an intern. This summer, Nyholm’s wife also was an intern in the Data Science Summer Institute....

‘Science on Saturday’ lectures return to Tracy

Sept. 16, 2019- 
Lawrence Livermore National Laboratory's (LLNL) popular "Science on Saturday” lecture series returns to Tracy, highlighting the brain and reprising two presentations that were featured earlier this year in Livermore. The free one-hour presentations will be held on Sept. 21 and Oct. 5 at 10 a.m. at The Grand Theatre, located at 715 N. Central Ave. in Tracy. Each informative and entertaining...

Study on stability of highly energetic materials

Sept. 13, 2019- 
Understanding the physical and chemical characteristics of energetic materials under extreme conditions is crucial for their safe and efficient use. High-pressure phase transitions in such materials can cause significant changes in their initiation properties and detonation performance necessitating detailed structural studies. The high-pressure structural evolution of CL-20 is of...

World's largest optical lens shipped to SLAC

Sept. 12, 2019- 
When the world’s newest telescope starts imaging the southern sky in 2023, it will take photos using optical assemblies designed by Lawrence Livermore National Laboratory (LLNL) researchers and built by Lab industrial partners. A key feature of the camera’s optical assemblies for the Large Synoptic Survey Telescope (LSST), under construction in northern Chile, will be its three lenses, one...

Register now for the annual San Joaquin 'Expanding Your Horizons' Conference

Sept. 3, 2019- 
Registration is open and spaces are filling up fast for the 26th annual San Joaquin Expanding Your Horizons (SJEYH) Conference, scheduled for Sat., Sept. 21, at the University of the Pacific in Stockton. SJEYH is a popular daylong event, serving young women in grades 6-12, designed to increase interest in and foster awareness of careers in science, technology, engineering and math (STEM). A...

Going small can help determine where nuclear material came from and how it was made

Aug. 29, 2019- 
Until recently, the analysis and identification of nuclear fuel pellets in nuclear forensics investigations have been mainly focused on macroscopic characteristics, such as fuel pellet dimensions, uranium enrichment and other reactor-specific features. But Lawrence Livermore National Laboratory (LLNL) scientists are going a step further by going down to the microscale to study the diverse...

Freshening up contaminated water

Aug. 28, 2019- 
Nitrate is a troublesome groundwater contaminant that is mainly caused by fertilizer runoff on farmlands. Many wells in agricultural regions exceed the EPA limit for nitrate in drinking water, and without an economical treatment option the water is unfit for potable use. But Lawrence Livermore National Laboratory (LLNL) and Stanford University researchers have developed a technology that...

Energy Department, Weill Foundation sign MOU to advance AI for biomedicine, health research

Aug. 27, 2019- 
At an event held Monday at Lawrence Livermore National Laboratory, U.S. Secretary of Energy Rick Perry and Sandy Weill, founder of the Weill Family Foundation, signed a memorandum of understanding (MOU) to formally initiate a public-private partnership for artificial intelligence (AI), neurological disorders and related subjects. The partnership will apply DOE-fueled AI capabilities to...

Jupiter shows its true stripes

Aug. 27, 2019- 
There’s a reason why Jupiter’s stripes are only skin deep. It turns out that the planet’s zonal winds -- the alternating east-west jet streams seen in photographs as colorful stripes -- only descend to 3,000 kilometers in the atmosphere. Magnetic fields can make fluids that conduct electricity (like Jupiter’s atmosphere) behave more like honey than water. Deeper into the planet, where...

Lawrence Livermore climate scientist Karl Taylor elected American Geophysical Union fellow

Aug. 23, 2019- 
Lawrence Livermore National Laboratory (LLNL) climate scientist Karl Taylor has been selected as a fellow of the American Geophysical Union (AGU). The AGU, with a membership of more than 60,000, is an international scientific association that spans the major disciplines of earth and space sciences. Each year a tenth of a percent of the members become fellows in recognition of their...

Linton Brooks awarded John S. Foster Medal for contributions to nuclear security

Aug. 22, 2019- 
Linton Brooks, ambassador for arms control, administrator of the National Nuclear Security Administration (NNSA) and a nuclear submarine officer, is a leader in advancing U.S. national security and international cooperation for a more secure world. In recognition of his outstanding service to the nation, Brooks has been named the fifth recipient of the John S. Foster Medal. Established by La...

Hackathoners put coding skills to the test

Aug. 22, 2019- 
College students are used to pulling all-nighters. For Lawrence Livermore National Laboratory summer intern Amar Saini, a recent graduate of the University of California, Merced, LLNL’s Summer Hackathon was a 24-hour, caffeine-fueled marathon of coding, diagramming and problem solving. Although Hackathon participants aren’t required to stay overnight and are strongly encouraged to get a good...

'Quantum annealer' shows promise in study

Aug. 21, 2019- 
An international team of researchers, including Lawrence Livermore National Laboratory (LLNL) physicist Arjun Gambhir, has developed a new algorithm for solving polynomial systems of equations using a type of quantum computer called a "quantum annealer." The team systematically examined how this method scales when facing increasingly difficult mathematical equations, with promising results....

NARAC celebrates 40 years of operations

Aug. 20, 2019- 
"What the Lab’s National Atmospheric Release Advisory Center (NARAC) does is it provides dispassionate science during fearful events." In one sentence, Jay Tilden summed up what NARAC has done for the nation for the past 40 years. Tilden is the National Nuclear Security Administration’s (NNSA) associate administrator for Counterterrorism and Counterproliferation. He joined NNSA...

NIF celebrates a decade of operations

Aug. 13, 2019- 
In the decade since Lawrence Livermore National Laboratory’s (LLNL) National Ignition Facility (NIF) began operations, NIF has routinely heated and compressed matter to some of the most extreme temperatures and pressures ever obtained on Earth – temperatures of 100 million degrees and pressures 100 billion times that of the Earth’s atmosphere.  See event photos. Funded by the Department of...

DOE/NNSA, Lab announce partnership with Cray to develop NNSA's first exascale supercomputer

Aug. 13, 2019- 
The Department of Energy (DOE), National Nuclear Security Administration (NNSA) and Lawrence Livermore National Laboratory (LLNL) today announced the signing of contracts with Cray Inc. to build the NNSA’s first exascale supercomputer, "El Capitan." El Capitan will have a peak performance of more than 1.5 exaflops (1.5 quintillion calculations per second) and an anticipated delivery in late...

Nanowire arrays could improve solar cells

Aug. 8, 2019- 
Transparent electrodes are a critical component of solar cells and electronic displays. To collect electricity in a solar cell or inject electricity for a display, you need a conductive contact, like a metal, but you also need to be able to let light in (for solar cells) or out (for displays). Metal is opaque, so the current techniques use metal oxides, most often indium tin oxide — a near...

Physicist Maria Gatu Johnson wins APS award

Aug. 6, 2019- 
Nuclear physicist Maria Gatu Johnson, who plays a key role in inertial confinement fusion (ICF) and Discovery Science campaigns at the National Ignition Facility (NIF), was named winner of the Katherine E. Weimer Award recognizing outstanding plasma science research by a woman physicist in the early stages of her career. "I am honored and grateful that my efforts to do the best work I can...