Showing stories 26-50 out of 480 stories. <<<1 | 2 | 3 | 4 | 5 | 6>>>
17-Apr-2017 How X-rays pushed topological matter research over the top
Pioneering X-ray experiments at Berkeley Lab's Advanced Light Source (ALS) helped bring to life decades-old theories about exotic topological states of matter, and the ALS continues to play an important role in this flourishing field of research.
13-Apr-2017 SLAC celebrates Femtosecond Week
Got a millionth of a billionth of a second? There's science that actually happens on this timescale. Join us online for a week of ultrafast science from April 17 to 21. Learn more about how scientists and engineers use electron beams and bright pulses of light from the Linac Coherent Light Source X-ray laser and other advanced lasers to capture some of nature's speediest processes that occur in just femtoseconds, or quadrillionths of a second.
3-Apr-2017 How did the proton get its spin?
Scientists once thought proton spin was simple to understand. However, after experiments in the 1980s proved their ideas wrong, researchers have been working to understand how the proton's components contribute to its spin. Scientists use the unique capabilities of the Relativistic Heavy Ion Collider and the Continuous Electron Beam Accelerator Facility, both DOE Office of Science user facilities, to explore this fundamental phenomenon.
30-Mar-2017 Physicists move closer to listening in on sub-atomic conversation
Much like two friendly neighbors getting together to chat over a cup of coffee, the minuscule particles in our sub-atomic world also come together to engage in a kind of conversation. Now, nuclear scientists are developing tools to allow them to listen in on the particles' gab fests and learn more about how they stick together to build our visible universe. The first complex calculations of a particle called the sigma have been carried out and published in Physical Review Letters.
28-Mar-2017 Secrets to scientific success: Planning and coordination
Very often there are people behind the scenes of scientific advances, quietly organizing the project's logistics. New facilities and big collaborations require people to create schedules, manage resources, and communicate among teams. The US Department of Energy's Brookhaven National Laboratory is lucky to have Xiaofeng Guo in its ranks -- a skilled project manager who coordinates projects reaching across the US and around the world.
27-Mar-2017 The power of 1
When it comes to creating new materials, single crystals play an important role in presenting a clearer picture of a material's intrinsic properties. A typical material will be comprised of lots of smaller crystals and the grain boundaries between these crystals can act as impediments, affecting properties such as electrical or thermal resistance.
14-Mar-2017 Two-dimensional MXene materials get their close-up
Researchers have long sought electrically conductive materials for economical energy-storage devices. Two-dimensional (2D) ceramics called MXenes are contenders. ORNL scientists using state-of-the-art scanning transmission electron microscopy provided the first direct evidence of the atomic-defect configurations in a titanium-carbide MXene synthesized at Drexel University. Published in ACS Nano, a journal of the American Chemical Society, the study coupled atomic-scale characterization and electrical property measurements with theory-based simulation.
9-Mar-2017 Cracking the Mystery of Perfect Efficiency: Investigating Superconductors
A whole new area of research emerged from the discovery of superconductivity in 1911. Since then, scientists have learned why some materials superconduct near absolute zero and have discovered 'high-temperature' superconductors. Now, researchers supported by the Department of Energy's Office of Science are working to identify a common characteristic of high-temperature superconductors in hopes of one day developing one that works at room temperature.
1-Mar-2017 Jefferson lab director honored with Energy Secretary Award
Hugh Montgomery, director of the Department of Energy's Thomas Jefferson National Accelerator Facility (Jefferson Lab), was awarded The Secretary's Distinguished Service Award by the Secretary of Energy earlier this year. This honor highlights Montgomery's contributions to the research programs at the DOE national labs, both as a world-leading researcher and as a more than 30-year DOE national laboratory employee.
28-Feb-2017 The heat is on
NASA is developing a new family of flexible heat-shield systems with a woven carbon-fiber base material, and is using X-rays at Berkeley Lab's Advanced Light Source to test the designs.
21-Feb-2017 When rocket science meets X-ray science
NASA and Berkeley Lab researchers have teamed up to explore next-generation spacecraft materials at the microscale using an X-ray technique that produces 3-D images. This work could help ensure future spacecraft survive the rigors of otherworldly atmospheres.
10-Feb-2017 Exploring mysteries on the surface
Ames Laboratory scientists Pat Thiel and Michael Tringides are explorers, discovering the unique properties of two-dimensional (2-D) materials and metals grown on graphene, graphite, and other carbon coated surfaces.
6-Feb-2017 Fermilab achieves milestone beam power for neutrino experiments
The US Department of Energy's Fermi National Accelerator Laboratory has achieved a significant milestone for proton beam power. On Jan. 24, the laboratory's flagship particle accelerator delivered a 700-kilowatt proton beam over one hour at an energy of 120 billion electronvolts.
1-Feb-2017 Simulations reveal the invisible chaos of superluminous supernovae
To better understand the physical conditions that create superluminious supernova, astrophysicists are running 2-D simulations of these events using supercomputers at the Department of Energy's National Energy Research Scientific Computing Center and the Lawrence Berkeley National Laboratory (Berkeley Lab) developed CASTRO code.
24-Jan-2017 The contradictory catalyst
One reason we can't bottle summer sunshine and save the solar energy for rainy days is that we don't have an efficient way to store it. Nature stores energy in chemical bonds, like when plants photosynthesize our food. Researchers are trying to design catalysts based on inexpensive metals to store energy like nature does.
The Department of Energy's Office of Science is the single largest supporter of basic research in the physical sciences in the United States and is working to address some of the most pressing challenges of our time.