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New DESI Results Strengthen Hints That Dark Energy May Evolve

Alt text: A long-exposure image captures circular star trails above telescope domes illuminated in red light on a dark mountain. A golden glow on the horizon marks distant city lights. Caption: DESI maps distant objects to study dark energy. The instrument is installed on the Mayall Telescope, shown here beneath star trails.

DESI Opens Access to the Largest 3D Map of the Universe Yet

Caption: DESI observes the sky from the Mayall Telescope, shown here beneath the Milky Way. Credit: KPNO/NOIRLab/NSF/AURA/R.T. Sparks Alt text: A white structure with a domed top on a rocky outcrop below a star-filled night sky. The Milky Way stretches vertically in a luminous band. Faint green glow tints the curved horizon.

Berkeley Lab’s February 2025 High School STEM Day focuses on Lab-wide engineering efforts

As part of Berkeley Lab’s High School STEM Day event on February 12, Anjana Saravanan, a mechanical engineering associate working in the ATAP Division, shows students an assembled superconducting quadrupole magnet for the high-luminosity upgrade of the Large Hadron Collider at CERN. Credit: Photo by Robinson Kuntz, Berkeley Lab

Small But Mighty: TESSERACT Joins the Hunt for Dark Matter

Two people stand in a lab room with a rack of electronics and a metal frame suspending equipment. One person holds a small hexagonal detector.

Berkeley Lab’s Role in Unraveling the Universe’s Origins with ALICE

The ALICE Experiment at the LHC. Photo courtesy of Berkeley Lab IT

In Memoriam: Remembering Herbert Steiner

Herbert Steiner. Credit: UC Berkeley Physics Department

Enhancing Nuclear Isomer Populations Using Ultrafast Electron Beams

ATAP BELLA Center Senior Scientist and Deputy of Theory Carl Schroeder, University of California, Berkeley, Associate Professor Lee Bernstein, BELLA Center Postdoctoral Scholar Robert Jacob, and BELLA Center Senior Scientist and Deputy of Experiments Jeroen van Tilborg in BELLA's petawatt laser area. (Credit: Matthew Fullmer/Berkeley Lab)

A New Approach to Efficient Optoelectronics, Inspired by the Human Eye

A recipe for energy efficiency: an optical sensor that also processes data. The transparent dome represents interactions between photons (red and green) and the nanoscale elements on the substrate. Carbon nanotubes with quantum dots (small spheres) are shown connected to CMOS circuitry below. (Credit: François Léonard/Sandia National Laboratories)

Using Flat Beams In Plasma Accelerators For Future Particle Colliders

ATAP BELLA Center Senior Scientist and Deputy of Projects and Applications Jens Osterhoff, Staff Scientist Carlo Benedetti, and Senior Scientist and Deputy of Theory Carl Schroeder discuss results from their research. (Credit: Matthew Fullmer, Berkeley Lab)

New analyses shine light on dark matter and intergalactic mass in unprecedented detail

Andromeda Galaxy, like our own and many other galaxies, has a supermassive black hole at the center. Credit: NASA/JPL-Caltech

Berkeley Lab hosts ATLAS ITk Workshop on January 13-17

Participants working in the lab. Credit: Maurice Garcia-Scivares, Berkeley Lab

GRETA Demonstrates Key Performance Parameters

Subset of germanium detectors installed for performance tests of the Gamma-Ray Energy Tracking Array (GRETA), the world’s most sensitive gamma-ray spectrometer that will be used at FRIB for studies of nuclear structure and nuclear astrophysics.Credit: Heather Crawford, Berkeley Lab

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