Physics

Cryocooler cools an accelerator cavity

Particle accelerators are made of structures called cavities, which impart energy to the particle beam, kicking it forward. One type of cavity is the superconducting radio-frequency, or SRF, cavity. Usually made of niobium, SRF cavities require extreme cold to operate. A Fermilab team developed a new way of cooling SRF cavities without liquid helium. The new system is easier to operate and simpler to construct.

A Bose-Einstein condensate has been produced in space for the first time

An international team of researchers has successfully produced a Bose-Einstein condensate (BEC) in space for the first time. In their paper published in the journal Nature, the group describes creating a small experimental device that was carried on a rocket into space and the experiments that were conducted during its freefall.

NASA Invites Media to Northrop Grumman Cygnus Launch from Virginia

Media accreditation now is open for the launch from Virginia of Northrop Grumman’s 10th commercial resupply services mission to deliver NASA science investigations, supplies and equipment to the International Space Station aboard its Cygnus spacecraft.

NASA to Host Briefings, Events for ICON Launch to Study Space Weather

NASA will host a series of media briefings leading up to the Friday, Oct. 26, launch of its Ionospheric Connection Explorer (ICON) mission to study the dynamic zone high in the atmosphere where terrestrial weather from below meets space weather above.

Study supports Standard Model of particle physics, excludes alternative models

In a new study, researchers at Northwestern, Harvard and Yale universities examined the shape of an electron's charge with unprecedented precision to confirm that it is perfectly spherical. A slightly squashed charge could have indicated unknown, hard-to-detect heavy particles in the electron's presence, a discovery that could have upended the global physics community.

Physicists create guidelines for non-equilibrium measurements of many-body systems

When it comes to non-equilibrium physics, not all assumptions are created equal. At least, those are the latest findings from NC State physicist Lex Kemper and colleagues from NC State and Georgetown University.

Acrylic tanks provide clear window into dark matter detection

Scientists have a new window into the search for dark matter – an acrylic vessel that features a grouping of 12-foot-tall transparent tanks with 1-inch-thick walls.

NASA's Marshall Center to Celebrate International Observe the Moon Night Oct. 20

NASA's Marshall Center will host the 8th annual International Observe the Moon Night celebration at the U.S. Space & Rocket Center Oct. 20 from 5:30-8:30 p.m. CDT. Members of the public and the Huntsville-area media are invited to attend.

New NASA Podcast Shares ‘Invisible’ Stories of Spaceflight

Today, NASA released a new, limited-edition podcast called The Invisible Network, the first NASA podcast to embrace narrative storytelling. All six episodes can be downloaded and binged on NASA’s website, SoundCloud and Apple Podcasts.

New memristor boosts accuracy and efficiency for neural networks on an atomic scale

Hardware that mimics the neural circuitry of the brain requires building blocks that can adjust how they synapse. One such approach, called memristors, uses current resistance to store this information. New work looks to overcome reliability issues in these devices by scaling memristors to the atomic level. Researchers demonstrated a new type of compound synapse that can achieve synaptic weight programming and conduct vector-matrix multiplication with significant advances over the current state of the art.

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