Physics

NASA Selects Small Businesses for Innovative Research and Technology Projects

NASA has selected 44 additional proposals from 42 small high-technology companies to enter into negotiations for Phase 2 contract awards through the agency's Small Business Innovation Research (SBIR) Program.

NASA Probe Observes Meteors Colliding With Saturn's Rings

NASA's Cassini spacecraft has provided the first direct evidence of small meteoroids breaking into streams of rubble and crashing into Saturn's rings.

Best Glimpse Yet of Comet ISON Provided by Hubble Telescope

Astronomers are expecting a lot out of Comet ISON. Due to pass incredibly close to the sun on November 28 of this year (700,000 miles from the star's surface), the frozen rock will make for a stunning sight, potentially outshining even the full moon. A Hubble Space Telescope photo released yesterday provides the clearest view of the comet so far and suggests a few surprises.

This image of ISON was snapped while the comet was about 286 million miles from the sun (slightly closer than Jupit

Light bursts out of a flying mirror

(Phys.org) —An international team of researchers succeeds in generating flashes of extreme ultraviolet radiation via the reflection from a mirror that moves close to the speed of light.

LHCb experiment observes new matter-antimatter difference

(Phys.org) —The LHCb collaboration at CERN today submitted a paper to Physical Review Letters on the first observation of matter-antimatter asymmetry in the decays of the particle known as the B0s. It is only the fourth sub-atomic particle known to exhibit such behavior.

New matter-antimatter difference observed in LHCb experiment at CERN

Researchers at CERN are reporting the first observation of matter-antimatter asymmetry in the decays of the particle known as the B0s. It is only the fourth subatomic particle known to exhibit such behavior.

NASA 'Inspired Science' Challenge Winners Talk Live With Astronaut

NASA astronaut Don Pettit will conduct three live video chats Thursday, April 25, with 12 student teams whose science experiments won an agency-sponsored contest.

NASA 'Inspired Science' Challenge Winners Talk Live With Astronaut

NASA astronaut Don Pettit will conduct three live video chats Thursday, April 25, with 12 student teams whose science experiments won an agency-sponsored contest.

New material approach should increase solar cell efficiency

A new research group brought together aspects of condensed matter physics, semiconductor device engineering, and photochemistry to develop a new form of high-performance solar photocatalyst based on the combination of the TiO2 (titanium dioxide) and other "metallic" oxides that greatly enhance the visible light absorption and promote more efficient utilization of the solar spectrum for energy applications.

Nanowires grown on graphene have surprising structure

When engineers set out to grow nanowires of a compound semiconductor on top of a sheet of graphene, they did not expect to discover a new paradigm of epitaxy. The self-assembled wires have a core of one composition and an outer layer of another, a desired trait for many advanced electronics applications.

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