Physics

Surprise discovery in the search for energy efficient information storage

Today almost all information stored on hard disc drives or cloud servers is recorded in magnetic media, because it is non-volatile (i.e. it retains the information when power is switched off) and cheap. For portable devices such as mobile phones and tablets, other forms of non-magnetic memory are used because the technology based on magnetism is impractical and is not energy efficient.

NASA Television to Air Launch of Next Space Station Resupply Mission

NASA commercial cargo provider SpaceX is targeting its 12th commercial resupply services mission to the International Space Station for 12:31 p.m. EDT Monday, Aug. 14. Coverage will begin on NASA Television and the agency’s website Sunday, Aug. 13, with two briefings.

NASA Selects Proposals to Study Galaxies, Stars, Planets

NASA has selected six astrophysics Explorers Program proposals for concept studies. The proposed missions would study gamma-ray and X-ray emissions from clusters of galaxies and neutron star systems, as well as infrared emissions from galaxies in the early universe and atmospheres of exoplanets, which are planets outside of our solar system.

Successful filming of fastest aurora flickering

Researchers conducted a 3 year continuous high-speed imaging observation at Poker Flat Research Range, Alaska, USA, and identified the physics behind the flickering of aurora. At the same time, they discovered faster flickerings at speeds of 1/60-1/50 and 1/80 of a second.

Updated computer code improves prediction of particle motion in plasma experiments

A computer code used by physicists around the world to analyze and predict tokamak experiments can now approximate the behavior of highly energetic atomic nuclei, or ions, in fusion plasmas more accurately than ever.

Cassini to Begin Final Five Orbits Around Saturn

NASA's Cassini spacecraft will enter new territory in its final mission phase, the Grand Finale, as it prepares to embark on a set of ultra-close passes through Saturn’s upper atmosphere with its final five orbits around the planet.

With a gentle touch, scientists push us closer to flash memory successor

Sometimes a light touch is best: When you're telling a joke or hammering a tiny finishing nail into a wall, a gentle delivery often succeeds most effectively. Research at the National Institute of Standards and Technology (NIST) suggests it also may be true in the microscopic world of computer memory, where a team of scientists may have found that subtlety solves some of the issues with a novel memory switch.

NASA Awards Space Science, Data Analysis Contract

NASA has awarded a contract to ADNET Systems, Inc. of Bethesda, Maryland, to provide Earth and space science research and development at the agency’s Goddard Space Flight Center in Greenbelt, Maryland.

Tiny terahertz laser could be used for imaging, chemical detection

For more than 20 years, researchers have been working on sources of terahertz radiation that can be etched onto microchips. In a new article, they now describe a novel design that boosts the power output of chip-mounted terahertz lasers by 80 percent.

NASA Glenn Announces Plans for Solar Eclipse Events

On Aug. 21, a total solar eclipse will cross the United States from coast-to-coast for the first time in 99 years. To celebrate, NASA's Glenn Research Center encourages you to experience the wonder of the eclipse with them at multiple events in the community.

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