Physics

NASA'S Swift Reveals New Phenomenon in a Neutron Star

Astronomers using NASA's Swift X-ray Telescope have observed a spinning neutron star suddenly slowing down, yielding clues they can use to understand these extremely dense objects.

NASA Hosts June 4 Media Briefing on Next Solar Mission Launch

NASA will host a news briefing at 1 p.m. EDT, Tuesday, June 4, about the upcoming launch of the Interface Region Imaging Spectrograph (IRIS) mission.

This Is How the Sun Will Die (in 3D)

The Ring Nebula is one of the most famous celestial objects because of its delicate beauty. That shimmering oval of rainbow colors has popped up everywhere from dorm-room posters to book jackets to album covers to just about every TV backdrop in the history of sci-fi. But it is more than mere eye candy. The Ring is also fascinating for what it tells us about our future.

Middleweight stars like the sun expand and cool in their old age, briefly turning into red giants. After the red giant s

Einstein's 'spooky action' common in large quantum systems

Mathematician have shown that entanglement -- what Einstein termed "spooky action at a distance" -- is actually prevalent in large quantum systems and have identified the threshold at which it occurs.

Just how secure is quantum cryptography?

Unlike classical encryption, quantum communication systems are known to offer the promise of virtually unbreakable encryption. Now, new research on this topic is shaking up the long-held notion that quantum communications are 100 percent secure. Researchers have recently demonstrated that quantum encryption may be susceptible to hacking.

Have health effects from the Chernobyl accident been overestimated?

The impact of the Chernobyl nuclear accident has been seriously overestimated, while unfounded statements presented as scientific facts have been used to strangle the nuclear industry, according to Russian researchers. New research suggests that the health effects of food contamination in particular have been distorted in anti-industry propaganda.

Researchers 'light' magnetic fire and analyse how energy propagates

The propagation of the so-called 'magnetic fire' in certain systems seems to be "the only combustion process ruled by quantum laws known in the nature", points out Javier Tejada, Professor of Condensed Matter Physics at the University of Barcelona and one of the authors of a study recently published on the journal Physical Review Letters (PRL), which uncovers how energy is released and dispersed in magnetic materials in a process akin to the spread of forest fires.

Models from big molecules captured in a flash

The structures of most of the two million proteins in the human body are still unknown, even at low resolution. A new algorithm solves the convoluted shapes of large molecules by using images of numerous individual samples, all caught simultaneously in a split-second flash of x-rays from a free-electron laser. The technique promises efficient information about the shapes of many more large biological molecules in their native, fluid state.

Brittle material toughened: Tungsten-fiber-reinforced tungsten

Tungsten is particularly suitable as material for highly stressed parts of the vessel enclosing a hot fusion plasma, it being the metal with the highest melting point. A disadvantage, however, is its brittleness, which under stress makes it fragile and prone to damage. A novel, more resilient compound material has now been developed. It consists of homogeneous tungsten with coated tungsten wires embedded. A feasibility study has just shown the basic suitability of the new compound.

NASA LANGLEY PARTNERS WITH VA. STEAM ACADEMY TO PROMOTE EDUCATION

NASA Langley and the Virginia STEAM Academy partner to enhance teaching and learning in Virginia through mentorships and sabbatical opportunities.

Pages

Subscribe to Mr. Loyacano RSS