Atomic Imperfections Move Quantum Communication Network Closer to Reality

An international team led by the University of Chicago's Institute for Molecular Engineering has discovered how to manipulate a weird quantum interface between light and matter in silicon carbide along wavelengths used in telecommunications.

Cool Power

Breakthroughs in solar panel cooling tech will help keep NASA's Parker Solar Probe operating at peak performance -- even while flying through the sun's corona

Our Expanding Universe: Delving Into Dark Energy

The universe is stretching out ever more rapidly - a phenomena known as cosmic acceleration - and scientists don't know why. Understanding the "dark energy" that is causing this expansion would help them put together a clearer picture of the universe's history. Scientists supported by the Department of Energy's Office of Science are using massive telescopes to chart how dark energy has influenced the structure of the universe over time.

PPPL-Led Team Wins Major Award of Time on DOE Supercomputers for Fusion Studies in 2017

Article describes ALCC allotment of 269.9 million supercomputer hours to study the complex edge region of fusion plasmas.

Hubble Captures Massive Dead Disk Galaxy That Challenges Theories of Galaxy Evolution

Astronomers combined the power of a "natural lens" in space with the capability of the Hubble Space Telescope to make a surprising discovery--the first example of a compact yet massive, fast-spinning, disk-shaped galaxy that stopped making stars only a few billion years after the big bang. Researchers say that finding such a galaxy so early in the history of the universe challenges the current understanding of how massive galaxies form and evolve.

SLAC Experiment is First to Decipher Atomic Structure of an Intact Virus with an X-ray Laser

An international team of scientists has for the first time used an X-ray free-electron laser to unravel the structure of an intact virus particle on the atomic level. The method dramatically reduces the amount of virus material required, while also allowing the investigations to be carried out several times faster than before. This opens up entirely new research opportunities.

New Prototypes for Superconducting Undulators Show Promise for More Powerful, Versatile X-Ray Beams

Researchers at the U.S. Department of Energy's Lawrence Berkeley National Laboratory (Berkeley Lab) and Argonne National Laboratory have collaborated to design, build and test two devices that utilize different superconducting materials and could make X-ray lasers more powerful, versatile, compact and durable.

SDSC's Comet is a Key Resource in New Global Dark Matter Experiment

The petascale Comet supercomputer at the San Diego Supercomputer Center (SDSC) on the UC San Diego campus has emerged as a key resource in what is considered to be the most advanced dark matter research quest to-date, with a group of international researchers recently announcing promising results after only one month of operation with a new detector.

Queen's University Scientist Warns of Asteroid Danger

A leading astrophysicist from Queen's University Belfast has warned that an asteroid strike is just a matter of time.

Illuminating a Better Way to Calculate Excitation Energy

In a new study appearing this week in The Journal of Chemical Physics, researchers demonstrate a new method to calculate excitation energies. They used a new approach based on density functional methods, which use an atom-by-atom approach to calculate electronic interactions. By analyzing a benchmark set of small molecules and oligomers, their functional produced more accurate estimates of excitation energy compared to other commonly used density functionals, while requiring less computing power.

Wave Beams Mix and Stir the Ocean to Create Climate

Waves deep within the ocean play an important role in establishing ocean circulation, arising when tidal currents oscillate over an uneven ocean bottom. The internal waves generated by this process stir and mix the ocean, bringing cold, deep water to the surface to be warmed by the sun. This week in the Physics of Fluids, investigators how to tell which way internal waves will go. The proposed theory unifies several previously understood explanations of wave propagation.

Getting the Biggest Bang Out of Plasma Jets

Capillary discharge plasma jets are created by a large current that passes through a low-density gas in what is called a capillary chamber. The gas ionizes and turns into plasma, a mixture of electrons and positively charged ions. When plasma expands in the capillary chamber due to arc energy heating, plasma ejects from the capillary nozzle forming the plasma jet. This week in Review of Scientific Instruments, a new study examines how the dimensions of the capillary producing the plasma affect the jet's length.

New Metrology Technique Measures Electric Fields

Mobile phones and other wireless devices have become central features of life around the globe. It is crucial to the design and deployment of these devices that they have accurate and traceable measurements for electric fields and radiated power. Until recently, however, it was not possible to build self-calibrating probes that could generate independent and absolute measurements of these electric field values. To address this problem, researchers have developed a new method to measure electric fields and a new probe to carry out such measurements. They share their work this week in the Journal of Applied Physics.

Making Waves with the Hot Electrons Within Earth's Radiation Belts

An international team of scientists recently discovered the role that hot electrons may play in the waves and fluctuations detected by satellites. The research team reports its findings this week in Physics of Plasmas. Their results are based on data collected by the Van Allen Probes, twin robotic spacecraft launched by NASA in 2012 to help scientists better understand these belt regions.

Sound Waves Direct Particles to Self-Assemble, Self-Heal

Berkeley Lab scientists have demonstrated how floating particles will assemble and synchronize in response to acoustic waves. Their simple experiment provides a new framework for studying how seemingly lifelike behaviors emerge in response to external forces. The work could help address fundamental questions about energy dissipation and non-equilibrium thermodynamics.

Image Release: GBT Captures Orion Blazing Bright in Radio Light

Astronomers used the Green Bank Telescope (GBT) in West Virginia to create the largest image ever of the dense band of star-forming gas that weaves its way through the northern portion of the Orion Nebula.

New Chemical Method Could Revolutionize Graphene

University of Illinois at Chicago scientists have discovered a new chemical method that enables graphene to be incorporated into a wide range of applications while maintaining its ultra-fast electronics.

Creighton Physicist's Work Unveils New Ability of Immune Cells

Being able to quiet active neutrophils with a dual-beam laser could lead to new treatments for lung injury.

Chaotically Magnetized Cloud Is No Place to Build a Star, or Is It?

To make a star, the conditions inside interstellar gas clouds have to be "just right." When it comes to a cloud's magnetic fields, however, those conditions may range from powerful and orderly to weak and chaotic, according to new ALMA observations.

Lawrence Livermore Researchers to Design, Build Instrument to Help Explore Metal Asteroid

In a few years, an instrument designed and built by Lawrence Livermore National Laboratory (LLNL) researchers will be flying hundreds of millions of miles through space to explore a rare, largely metal asteroid.

Researchers Create 3-D Printed Tensegrity Objects Capable of Dramatic Shape Change

A team of researchers from the Georgia Institute of Technology has developed a way to use 3-D printers to create objects capable of expanding dramatically that could someday be used in applications ranging from space missions to biomedical devices.

Researchers advocate statistical approach to search for Earth-like planets

Astronomers at the University of Chicago and Grinnell College seek to change the way scientists approach the search for Earth-like planets orbiting stars other than the sun, taking a statistical comparative approach in seeking life beyond the solar system.

U.S.-China Collaboration Makes Excellent Start in Optimizing Lithium to Control Fusion Plasmas

Feature describes testing different lithium injectors on China's EAST tokamak.

VLA Gives New Insight Into Galaxy Cluster's Spectacular 'Mini-Halo'

VLA discovers new details that are helping decipher the mystery of how giant radio-emitting structures are formed at the center of a cluster of galaxies.