Thursday 22 August 2013

NASA Partner Completes Second Dream Chaser Captive-Carry Test

NASA partner Sierra Nevada Corporation (SNC) of Louisville, Colo., successfully completed a captive-carry test of the Dream Chaser spacecraft Thursday, Aug. 22, at the agency's Dryden Flight Research Center in Edwards, Calif.

via NASA Breaking News

http://www.nasa.gov/press/2013/august/nasa-partner-completes-second-dream-chaser-captive-carry-test

NASA releases new imagery of asteroid mission

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NASA released new photos and video animations depicting the agency's planned mission to find, capture, redirect, and study a near-Earth asteroid. The images depict crew operations including the Orion spacecraft's trip to and rendezvous with the relocated asteroid, as well as astronauts maneuvering through a spacewalk to collect samples from the asteroid.

via Science Daily

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NASA Awards Environmental Engineering and Occupational Health Services Contract

NASA has awarded a contract to HPM Corp. of Kennewick, Wash., to provide environmental engineering and occupational health services to the agency's Marshall Space Flight Center in Huntsville, Ala.

via NASA Breaking News

http://www.nasa.gov/press/2013/august/nasa-awards-environmental-engineering-and-occupational-health-services-contract

NASA Prepares for First Virginia Coast Launch to Moon

In an attempt to answer prevailing questions about our moon, NASA is making final preparations to launch a probe at 11:27 p.m. EDT Friday, Sept. 6, from NASA's Wallops Flight Facility on Wallops Island, Va.

via NASA Breaking News

http://www.nasa.gov/press/2013/august/nasa-prepares-for-first-virginia-coast-launch-to-moon

NASA Releases New Imagery of Asteroid Mission

NASA released Thursday new photos and video animations depicting the agency's planned mission to find, capture, redirect, and study a near-Earth asteroid. The images depict crew operations including the Orion spacecraft's trip to and rendezvous with the relocated asteroid, as well as astronauts maneuvering through a spacewalk to collect samples from the asteroid.

via NASA Breaking News

http://www.nasa.gov/press/2013/august/nasa-releases-new-imagery-of-asteroid-mission

Astronomers use Hubble images for movies featuring space slinky

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(Phys.org) —Astronomers have assembled, from more than 13 years of observations from NASA's Hubble Space Telescope, a series of time-lapse movies showing a jet of superheated gas—5,000 light-years long—as it is ejected from a supermassive black hole.



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Space slinky: Jet of superheated gas -- 5,000 light-years long -- ejected from supermassive black hole

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Astronomers have assembled, from more than 13 years of observations from NASA's Hubble Space Telescope, a series of time-lapse movies showing a jet of superheated gas — 5,000 light-years long — as it is ejected from a supermassive black hole in the giant elliptical galaxy M87.

via Science Daily

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Astronomers Use Hubble Images for Movies Featuring Space Slinky

Astronomers have assembled, from more than 13 years of observations from NASA's Hubble Space Telescope, a series of time-lapse movies showing a jet of superheated gas -- 5,000 light-years long -- as it is ejected from a supermassive black hole.

via NASA Breaking News

http://www.nasa.gov/press/2013/august/astronomers-use-hubble-images-for-movies-featuring-space-slinky

Hubble Takes Movies of Space Slinky



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The universe is so big, and it takes so long for most celestial objects to change, that it is rare a telescope can catch something in motion. It helps if the target is moving at nearly the speed of light, and that the Hubble Space Telescope's crystal-clear view can catch subtle changes in one-tenth the time it might take for a ground-based telescope. Astronomers collected 500 Hubble pictures, taken over 13 years to make a movie flipbook of a blowtorch-like jet of gas blasted from the vicinity of a supermassive black hole. The black hole resides in the center of the galaxy M87. The jet has been known about for nearly a century. But the new Hubble movie provides a look at the jet's dynamics. The movie shows that the hot plasma is spiraling along magnetic field lines generated by the 7-billion-solar-mass black hole. These so-called extragalactic jets are seen elsewhere in the universe, but this comparatively nearby jet is offering a detailed look at what powers and aligns them. When Lick Observatory astronomer Heber Curtis first saw the jet in 1918 he described it as "a curious straight ray." Little might Curtis have imagined that we'd someday follow it blazing across space.




via HubbleSite NewsCenter -- Latest News Releases

http://hubblesite.org/newscenter/archive/releases/2013/32/

Quantum teleportation: Transfer of flying quantum bits at the touch of a button

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By means of the quantum-mechanical entanglement of spatially separated light fields, researchers in Tokyo and Mainz have managed to teleport photonic qubits with extreme reliability. This means that a decisive breakthrough has been achieved some 15 years after the first experiments in the field of optical teleportation. The success of the experiment conducted in Tokyo is attributable to the use of a hybrid technique in which two conceptually different and previously incompatible approaches were combined.



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Process devised for ultrathin carbon membranes

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Scientists have succeeded in developing a new path to produce carbon nanomembranes. In the future, such membranes are expected to be able to filter out very fine materials. The advantage of the new method of fabrication is that it allows a variety of different carbon nanomembranes to be generated which are much thinner than conventional membranes.

via Science Daily

Physicist proves impossibility of quantum time crystals

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(Phys.org) —Is it possible that a moving object could have zero energy? The common sense answer is no, since motion itself is kinetic energy, but this answer has been challenged recently by the concept of quantum time crystals. First proposed in 2012 by the Nobel Laureate Frank Wilczek at MIT, quantum time crystals are theoretical systems that exhibit periodic oscillations in their ground state, i.e., their state of lowest possible energy.



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Researchers get around bad gap problem with graphene by using negative differential resistance

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(Phys.org) —A team of researchers at the University of California has come up with a way to use graphene in a transistor without sacrificing speed. In a paper they've uploaded to the preprint server arXiv, the team describes how they took advantage of a property of graphene known as negative differential resistance to coax transistor-like properties out of graphene without causing it to behave as a semiconductor.



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Two become one with the 3-D NanoChemiscope

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The 3D NanoChemiscope is a miracle of state-of-the-art analysis technology. As a further development of well-known microscopic and mass spectroscopic methods, it maps the physical and chemical surfaces of materials down to the atomic level. This instrument, which is unique in the world, not only delivers high-definition images; it also knows what it is "seeing".



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