Cross-directorate team works to survey the Lab’s biodiversity

Jan. 24, 2023- 
From the rolling hills of Tracy to the grassy plains of Livermore, LLNL’s lands are replete with biodiversity, and keeping track of the resident flora and fauna is no small feat. Acoustic monitoring was used to passively search for rare bat species. Wildlife biologists from ECORP Consulting are shown installing a Wildlife Acoustics SM4BAT-FS unit using the SMM-U2 microphone in a remote canyon at Site 300. Photo by Lisa Paterson/LLNL.Located at the intersection of Coastal and Central Valley environments, the Livermore Valley and surrounding hills attracted early botanists and wildlife biologists from UC Berkeley and the California...

Water modified ancient asteroid

Jan. 19, 2023- 
Samples from asteroid Ryugu returned by the Hayabusa2 mission contain evidence of extensive alteration by water and appear related to CI chondrites, which are believed to best represent the bulk of the solar system composition. Lawrence Livermore National Laboratory (LLNL) scientists in collaboration with an international team looked at the isotopic composition of oxygen, carbon and...

Charging up with carbon nanotubes

Dec. 12, 2022- 
Lawrence Livermore National Laboratory (LLNL) scientists have created vertically aligned single-walled carbon nanotubes on metal foils that could be a boon for energy storage and the electronics industry. Vertically aligned carbon nanotubes (VACNTs) have exceptional mechanical, electrical and transport properties in addition to an aligned architecture, which is key for applications such as...

Environmental DNA uncovers a 2-million-year-old ecosystem in Greenland

Dec. 7, 2022- 
Around 2 million years ago, climate in Greenland resembled the forecast of a future under global warming: with trees such as poplars and birch and animals like hare, lemmings, mastodons and reindeer. Paleoclimatic records show strong polar amplification with annual temperatures of 11–19 degrees Celsius above current values. The biological communities inhabiting the Arctic during this time...

Improving precision of pressure determination in nanosecond X-ray diffraction experiments

Dec. 5, 2022- 
X-ray diffraction measurements under laser-driven dynamic compression allow researchers to investigate the atomic structure of matter at hundreds of thousands of atmospheres of pressure and temperatures of thousands of degrees, with broad implications for condensed matter physics, planetary science and astronomy. Pressure determination in these experiments often relies on velocimetry...

Machine-learning model instantly predicts polymer properties

Nov. 30, 2022- 
Hundreds of millions of tons of polymer materials are produced globally for use in a vast and ever-growing application space with new material demands such as green chemistry polymers, consumer packaging, adhesives, automotive components, fabrics and solar cells. But discovering suitable polymer materials for use in these applications lies in accurately predicting the properties that a...

New method unearths improved understanding of soil microbial interactions

Nov. 29, 2022- 
Linking the identity of wild microbes with their physiological traits and environmental functions is a key aim for environmental microbiologists. Of the techniques that strive for this goal, Stable Isotope Probing — SIP — is considered the most effective for studying active microorganisms in natural settings. Lawrence Livermore National Laboratory (LLNL) scientists have developed a new...

Uranium takes an alternate pathway under extreme conditions

Nov. 28, 2022- 
Under normal conditions, radioactive materials such as uranium work in a predictable manner. But take those same materials and put them under extreme conditions with high temperature in a short timescale and a rapid cooling process and their decomposition pathways change dramatically. Lawrence Livermore National Laboratory (LLNL) scientists built a unique process to synthesize...

New analysis helps reconcile differences between satellites and climate models

Nov. 21, 2022- 
Satellite observations and computer simulations are important tools for understanding past changes in Earth’s climate and for projecting future changes. However, satellite observations consistently show less warming than climate model simulations from 1979 to the present, especially in the tropical troposphere (the lowest ~15km of Earth’s atmosphere). This difference has raised...

Scientists use carbon to detect a new nitrogen source in the open ocean

Nov. 17, 2022- 
Lawrence Livermore National Laboratory (LLNL) and UC Santa Cruz scientists have detected a previously hypothesized class of nitrogen fixation in the surface ocean. Nitrogen scarcity limits the growth of ocean phytoplankton, a globally important carbon sink and the base of the marine food web. Nitrogen that can be used by phytoplankton generally has a very low concentration in the sunlit...

LLNL physicist probes causes of life-shortening 'dwell fatigue' in titanium

Nov. 11, 2022- 
"Dwell fatigue" is a phenomenon that can occur in titanium alloys when held under stress, such as a jet engine's fan disc during takeoff. This peculiar failure mode can initiate microscopic cracks that drastically reduce a component's lifetime.   The most widely used titanium alloy, Ti-6Al-4V, was not believed to exhibit dwell fatigue before the 2017 Air France Flight 066 incident, in...

Lab researchers study Rift Valley fever virus

Nov. 10, 2022- 
Immune responses could be supported by drugs to help people recover from brain infections caused by Rift Valley fever virus Research by Lawrence Livermore National Laboratory (LLNL) scientists suggests that immune responses could be bolstered by drugs to help people recover from brain infections caused by an emerging pathogen. The emerging pathogen studied by the team, known as Rift...

Lab researchers elected Optica fellows

Nov. 9, 2022- 
Lawrence Livermore National Laboratory (LLNL) scientists Félicie Albert and Craig Siders have been selected as fellows of Optica (formerly OSA). Fellows are selected based on several factors, including distinguished contributions to education, research, engineering, business and serving the optics and photonics community. Click here to see the entire Optica 2023 class. Félicie...

Lab-led nEXO project receives Inflation Reduction Act funding

Nov. 4, 2022- 
Lawrence Livermore National Laboratory (LLNL) has received $2.35 million from the Inflation Reduction Act, which aims to support domestic energy production and promote clean energy and to provide the Department of Energy (DOE) national laboratories with resources to keep the U.S. at the forefront of scientific discovery. The funding has been allocated for the Lab-led nEXO project...

Come rain or shine, viruses live on in soil

Nov. 3, 2022- 
Soils contain diverse communities of microorganisms, including bacteria, fungi, protists and viruses. Interactions between these tiny organisms shape the ability of soils to store carbon underground. However, not much is known about the spatial patterns and dynamics of viral communities in soil. New research by Lawrence Livermore National Laboratory (LLNL) scientists and collaborators...

LLNL to participate in three energy-focused projects

Oct. 26, 2022- 
Transforming the way energy is collected, stored and used has become a defining challenge of the 21st century. To address this task, the Department of Energy’s (DOE) Office of Basic Energy Sciences (BES) established the Energy Frontier Research Center (EFRC) program. This year, Lawrence Livermore National Laboratory and collaborators were awarded three projects. The first project, led...

Lab microbial array used in space station study

Oct. 25, 2022- 
A five-year microbial study of the International Space Station (ISS) and its astronauts by Lawrence Livermore National Laboratory (LLNL) and NASA researchers has found that the ISS habitat is safe for its residents. The research effort represents the first comprehensive characterization of the space station’s environmental profile (or microbiome) and is the first to compare the ISS...

From batteries to water purifiers, carbon nanotubes are where it’s at

Oct. 24, 2022- 
Lawrence Livermore National Laboratory (LLNL) scientists are scaling up the production of vertically aligned single-walled carbon nanotubes (SWCNT) that could revolutionize diverse commercial products ranging from rechargeable batteries, automotive parts and sporting goods to boat hulls and water filters. The research appears in the journal Carbon. Most CNT production today is used in...

'Twisted' laser light experiments offer new insights into plasma physics

Oct. 21, 2022- 
Electromagnetic vortices occur naturally throughout the universe and have recently been observed in association with black holes. Over the last decade, scientists have sought methods to investigate how extremely strong electromagnetic vortices interact with matter, specifically plasma, in a laboratory setting. Plasma, known as the “fourth state of matter,” makes up nearly all...

2022 Gulbenkian Prize for Humanity jointly awarded to the IPCC

Oct. 20, 2022- 
The United Nations (UN) Intergovernmental Panel on Climate Change (IPCC) was jointly awarded the Gulbenkian Prize for Humanity, alongside the Intergovernmental Science-Policy Platform on Biodiversity and Ecosystem Services (IPBES). The prize jury distinguished the two intergovernmental organizations for their role in developing scientific knowledge, alerting society and informing policymakers...