This image shows observations of a newly discovered galaxy core dubbed GOODS-N-774, taken by the NASA/ESA Hubble Space Telescope’s Wide Field Camera 3 and Advanced Camera for Surveys. The core is marked by the box inset, overlaid on a section of the Hubble GOODS-N, or GOODS North, field (Great Observatories Origins Deep Survey). (Credit: NASA, ESA)
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The moment of detonation of a Type 1a supernova is modeled. This situation arises when a white dwarf star has accreted mass from a binary partner to a point when gravitational forces overcome the outward electron degeneracy pressure. The star collapses and it is thought that carbon fusion is initiated in the core, creating a supernova. (Credit: Argonne National Laboratory)
White Dwarf No More – The Type 1a supernova proceeds in the simulation, ripping through the white dwarf star. The star is completely destroyed. Around 1-2 × 1044 Joules of energy is released from Type 1a supernovae, ejecting matter and shock waves traveling at velocities of 3-12,000 miles per second (approximately 2-7% the speed of light). (Credit: Argonne National Laboratory)
Complex Fluid Mechanics – Detailed visualizations of the nuclear combustion inside a supernova. The calculations are based on fluid mechanics, showing how the explosion rips through the star. (Credit: Argonne National Laboratory)
Cosmic rays can help scientists do something no one else can: safely image the interior of the nuclear reactors at the Fukushima Daiichi plant. In the Los Alamos National Laboratory, postdoc Elena Guardincerri, right, and undergraduate research assistant, Shelby Fellows, prepare a lead hemisphere inside a muon tomography machine. (Credit: Los Alamos National Laboratory, Tuttle)
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This artist’s impression shows a possible mechanism for a Type Ia supernova. Astronomers have shown that dead stars known as white dwarfs can re-ignite and explode as supernovas. (Credit: NASA)via bbc
llustration of data from the Spitzer Space Telescope, showing the massive increase in dust around the star NGC 2547-ID8, thought to be the result of an asteroid collision. Image (Credit: NASA/JPL-Caltech/University of Arizona)
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A plot showing a spin up, spin down, and the resulting spin polarized population of electrons. Inside a spin injector, the polarization is constant, while outside the injector, the polarization decays exponentially to zero as the spin up and down populations go to equilibrium. (Credit SA3.0)
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This image sometimes circulates on Facebook, with the claim that Mars will appear as big and bright as a full moon on August 27, 2014. It’s a hoax. Don’t believe it. Mars never appears as large as a full moon in Earth’s sky. (Credit: Unknown)
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A optical microscope image of the spintronic device (top view). The top electrode (tg) and cobalt electrodes (1 to 5) are yellow. The boron nitride layers (in green) encapsulate the graphene flake, which is outlined by the dotted line. Credit: Fundamental Research on Matter (Credit: FOM)
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Alessandro Strumia of the University of Pisa, pictured speaking at a conference in 2013, has co-developed a scale-symmetric theory of particle physics called “agravity.” (Credit: Thomas Lin/Quanta Magazine)
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X-ray interference pattern measured while studying complex nano-layer structures. The sketch inserted illustrates the path of the x-ray beam relative to the surface of the sample. (Credit: Sebastian Macke)
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Three weeks after launching the AsiaSat-8 communications satellite, SpaceX is primed to deliver its sibling, AsiaSat-6, into geostationary transfer orbit at an altitude of 22,236 miles (35,786 km) on Wednesday, 27 August. (Credit: AsiaSat)
via americaspace
Relative intensity (top row) and pre-trial significance (bottom row) of the cosmic-ray flux in the vicinity of Region A (left), Region B (center), and Region C (right). (Credit: Abeysekara et al)
The very first stars in the Universe might have been hundreds of times more massive than the Sun. (Credit: National Astronomical Observatory of Japan)
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Jonathan Menard, a principal research physicist and program director for the National Spherical Torus Experiment (NSTX), and Masa Ono, a principal research physicist and project director of the NSTX, stand in front of the experiment during a tour of the facility. The device has been shut down since 2011 while it undergoes a $94 million upgrade that will make it the most powerful device of its kind in the world. (Credit NSTX)
via nj.com
The agency intends to deploy the spacecraft, codename Liquidator, to clear up the geostationary orbit over the equator, which is 36 thousand kilometers above sea level. (Credit: Roscosmos)
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“When you start to make electronics smaller and denser, not only are you making much more heat in the same amount of volume, but it’s much harder for the heat to flow outward,” says Peter Nalbach, a theoretical physicist at the University of Hamburg, Germany. (Credit: Mehau Kulyk/Getty)
via popularmechanics
Researchers hope to create a massive online “brain” that can help all robots navigate and even understand the world around them. “The purpose,” says Saxena, who dreamed it all up, “is to build a very good knowledge graph—or a knowledge base—for robots to use. (Credit: Thinkstock, Hernandez )
via wired
Probability density of an Efimov trimer state at different three-body geometries that are characterized by the polar angle — indicated by the trimer legends. The key feature in the probability density is that unlike ordinary molecular binding that mostly has a single geometry, the Efimov trimer covers have a broad range of geometries. The atoms in such states behave more like in a fluid drop. (Credit: Yujun Wang, Kansas State University)
Dark matter and dark energy continue to be cosmological conundrum for physicists worldwide. Nobel prize winner Brian Schmidt offers his perspective in an interview. The image shown here is of the ALMA antennas and the constellations of Carina (The Keel) and Vela (The Sails). The dark, wispy dust clouds of the Milky Way streak from middle top left to middle bottom right. (Credit: ESO, B. Tafreshi)
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“Our model predicts different fracture patterns on the surface of Charon depending on the thickness of its surface ice, the structure of the moon’s interior and how easily it deforms, and how its orbit evolved,” said Alyssa Rhoden of NASA’s Goddard Space Flight Center. (Credit: NASA)
via dailygalaxy
Open network environments have become essential in the sciences, enabling accelerated discovery and communication of knowledge. Yet, the real revolution began when open community databases allowed researchers to build on existing contributions and compare their results to established knowledge. (Credit: King, Uhlir)
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Indian physicists propose a tabletop experiment that will provide scientists their first opportunity to measure the probability that particles can move through slits in a twisted path, depicted by the purple ray. (Credit: Aninda Sinha and Urbasi Sinha)
via telegraphindia
Physicists in the US have compressed a synthetic diamond to pressures of 50 million Earth atmospheres to recreate conditions in the cores of giant planets. (Credit: National Ignition Facility)
via sciencealert
. A novel class of electronic materials – the so-called transition-metal oxides – hold promise for exciting, new applications. Where layers of this novel class of electronic materials touch, often a unique, and unprecedented phenomenon occurs: for instance, the interface between two insulators can become superconducting, or a strong magnetic order can build up between two non-magnetic layers.
via phys.org
NIST-F1 contributes to the international group of atomic clocks that define Coordinated Universal Time (UTC), the official world time. Because NIST-F1 is among the most accurate clocks in the world, it makes UTC more accurate than ever before. (Credit: Time and Frequency Division of NIST’s PML)
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Artist’s conception of the atmosphere of an Earth-like planet displaying a brownish haze as the result of widespread pollution. (Credit: Christine Pulliam/Harvard-Smithsonian Center for Astrophysics)
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This new NASA/ESA Hubble Space Telescope image shows the globular cluster IC 4499. A cosmic archaeological dig has unfolded within a giant ball of stars some 55,000 light-years away. (Credit: NASA)
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Top: A typical set-up for squeezing injection in the first demonstrations of squeezing at GEO600 and LIGO, both using DC readout [36,37]. Bottom: Proposed design for future detectors. This design features an in-vacuum OPO. The remainder of the squeezed light source remains outside of vacuum. (Credit: E. Oelker, L. Barsotti, S. Dwyer, D. Sigg, and N. Mavalvala)
via opticsinfobase
What’s that dot on the Sun? If you look closely, it is almost perfectly round. The dot is the result of an unusual type of solar eclipse that occurred in 2006. Usually it is the Earth’s Moon that eclipses the Sun. This time, the planet Mercury took a turn. (Credit: D. Cortner, NASA, K. Schmidt)
“Maybe we will see how galaxies are magnetically connected to intergalactic space. This is a key experiment in preparation for the planned Square Kilometre Array (SKA) that should tell us how cosmic magnetic fields are generated,” says Rainer Beck, lead astronomer with the Max Planck Institute.
Researchers have developed a flexible structure that can sense ambient conditions and adjust its color to match them. At the moment, it only works in black and white. (Credit: PNAS, Timmer)
via arstechnica
In a conversation with Mashable via Twitter, McGregor resident @EthansMommy17, who tweeted the above image of the explosion, claimed cows had been killed by debris from the explosion. She was unable to provide images or other confirmation of the affected livestock, however. (Credit: @EthansMommy17)
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The space specialist said that the ISS surface was polluted very strongly due to operation of space engines and other factors. “We are conducting special works to polish somehow and put illuminators in order. This is particularly needed during long space flights,” Solovyev added. (Credit: Tracy Caldwell Dyson)
via forbes
Although they are gigantic, ranging from one to a few hundred lightyears in size, the physical process that causes these nebulae to emit their own light (rather than merely reflect light from nearby stars) occurs at the atomic level. It is the same process that makes familiar florescent lights shine here on Earth. (Credit: NASA, Prozesky)
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On July 29th, the the Automated Transfer Vehicle launched carrying samples of the stuff to the ISS, where it docked on August 12th. There, astronauts will conduct tests on the paint, which absorbs 99.5 percent of visible light (and 99.8 percent of longer wavelength light). (Credit: NASA, Campbell-Dollaghan)
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Google Inc. has conducted more than 300,000 miles of driverless car testing with vehicles. They navigate by collecting real-time sensor data and comparing it to pre-loaded maps that specify exact locations for roads and signs, while adapting to obstacles such as people and cars. (Credit: Justin Sullivan/Getty Images, Kearns)
via bloomberg
A patterned 3-D grid of tiny whirlpools, called quantum vortices, populate a nanoscale droplet of superfluid helium. Researchers found that in a micron-sized droplet, the density of vortices was 100,000 times greater than in any previous experiment on superfluids. An artistic rendering of a wheel-shaped droplet can be seen in the distance. (Credit: SLAC National Accelerator Laboratory)
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The suturing tool demonstrates image-guided anastomosis, which means the connecting of parts such as vessels. The target on the top of the tool is used to lead the tool’s tip. This is the same technology used to track the robotic systems on the space shuttle and the International Space Station. (Credit: MDA and CIGITI)
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An aurora dances in the atmosphere on Aug. 20, 2014, as the International Space Station flew over North America. This image was captured by astronaut Reid Wiseman from his vantage point on the ISS. (Credit: NASA/Handout/QMI Agency)
via cbc