Physics in the News

Tuesday, August 26, 2014

Pluto bound spacecraft crosses Neptune’s orbit(VIDEO)

via nasa

Mars, August 27, moon hoax is fake

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)

Physicists ‘freeze time’ to manipulate spin information in graphene

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)

Radical new theory could kill the multiverse hypothesis

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)

via simonfoundation

New technique for measuring nanostructures

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)

SpaceX primed to launch second AsiaSat mission in three weeks

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

Cosmic rays on the sky – where do they come from?

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)

Imprint of primordial monster star found

The very first stars in the Universe might have been hundreds of times more massive than the Sun. Credit: Artist's impression by National Astronomical Observatory of Japan — The very first stars in the Universe might have been hundreds of times more massive than the Sun. (Credit: National Astronomical Observatory of Japan)

via scientificamerican

Nuclear fusion reactor at the Princeton Plasma Physics Lab will be operational again after $94 M upgrade

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 — 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)

Roscosmos intends to spend about $298 million on removing orbital clutter

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 — 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)

How the computer of the future keeps its cool

"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) — “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

The plan to build a massive online brain for all the world’s robots

hey 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.Thinkstock — 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 )

Physics research removes outcome unpredictability of ultracold atomic reactions

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) — 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)

Physics in the News

Monday, August 25, 2014

Galileo satellites go into wrong, lower orbit(VIDEO)

via bbc

Nobel prize winner: Let’s find dark matter and dark energy

This picture shows ALMA antennas pointing towards the centre of the milky-way. (Photo: ESO, B. Tafreshi) — 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)

via sciencenordic

Pluto and the other dwarf planets could have astrobiological potential

“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

Soft infrastructure challenges to scientific knowledge discovery

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)

via acm

Physicists attempt quantum clean-up experiment to right old error

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

Vision correcting displays could spell the end of wearing glasses

via crazyengineers

World’s largest laser compresses diamond to pressures of 50 million Earth atmospheres

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

An interesting glimpse into how future state of the art electronics might work

. 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.

Physics in the News

Tuesday, June 17, 2014

Decontamination system turns space station into life science laboratory

NASA astronaut Rick Mastracchio prepares to test the ultraviolet light decontamination hardware (Image: NASA) — NASA astronaut Rick Mastracchio prepares to test the ultraviolet light decontamination hardware (Credit: NASA)

Hubble telescope on the lookout for Kuiper belt as it pasts Pluto

The New Horizons spacecraft approaches Pluto in this artist's conception. (JHUAPL/SWRI) — The New Horizons spacecraft approaches Pluto in this artist’s conception. (Credit: JHUAPL/SWRI)

via news.sciencemag

Former NASA Physicist Disputes Einstein’s Relativity Theory

A diagram depicting gravitational lensing, a phenomenon by which light bends around some objects in space. (NASA, ESA; J. Richard, CRAL; and J.-P. Kneib, LAM) — A diagram depicting gravitational lensing, a phenomenon by which light bends around some objects in space. (Credit: NASA, ESA; J. Richard, CRAL; and J.-P. Kneib, LAM)

via theepochtimes

We owe our lives to instability

rt_yc12_7000 — Rayleigh Taylor Instability: carbon mass fraction ρ=107 gm/cm3 12C→24Mg nuclear flame. Gravity 109 cm/s2 (Credit: Wiki Commons)

via santafenewmexican

Space giants join forces to battle SpaceX: This is how cheap space travel begins

The SpaceX Dragon capsule is making its third trip to the International Space Station, following a demonstration flight in May 2012 and the first resupply mission in October 2012 — The SpaceX Dragon capsule is making its third trip to the International Space Station, following a demonstration flight in May 2012 and the first resupply mission in October 2012 (Credit: SpaceX)

via extremetech

Opportunity peers out from ‘Pillinger Point’ – Honoring British Beagle 2 Mars scientist

Opportunity Mars rover peers into vast Endeavour Crater from Pillinger Point mountain ridge named in honor of Colin Pillinger, the Principal Investigator for the British Beagle 2 lander built to search for life on Mars. Pillinger passed away from a brain hemorrhage on May 7, 2014. This navcam camera photo mosaic was assembled from images taken on June 5, 2014 (Sol 3684) and colorized. Credit: NASA/JPL/Cornell/Marco Di Lorenzo/Ken Kremer-kenkremer.com Read more: http://www.universetoday.com/112606/opportunity-peers-out-from-pillinger-point-honoring-british-beagle-2-mars-scientist-where-ancient-water-flowed/#ixzz34sFwIO7M — Opportunity Mars rover peers into vast Endeavour Crater from Pillinger Point mountain ridge named in honor of Colin Pillinger, the Principal Investigator for the British Beagle 2 lander built to search for life on Mars. Pillinger passed away from a brain hemorrhage on May 7, 2014. This navcam camera photo mosaic was assembled from images taken on June 5, 2014 (Credit: NASA/JPL/Cornell/Marco Di Lorenzo/Ken)

via universetoday

The Continuing Saga of Planet X: Could More Massive Planets Hide Beyond Pluto?

An artist’s impression of Eris, the most massive dwarf planet known to date, with an aphelion of 97 AU from the Sun. Could bigger Super-Earth-type planets be orbiting even farther out? Image Credit: ESO/L. Calçada and Nick Risinger — An artist’s impression of Eris, the most massive dwarf planet known to date, with an aphelion of 97 AU from the Sun. Could bigger Super-Earth-type planets be orbiting even farther out? (Credit: ESO/L. Calçada and Nick Risinger)

via americaspace

Trapping light: A long lifetime in a very small place

The top layer shows a simulation of the nanostructure confining the light in the tiny red regions. The second layer is the design generated by an approach that mimics evolutionary biology. The bottom two layers show electron micrographs of the realized nanostructure in silicon. The sharp peak on the left is the trace of the long trapping of light. Credit: Fabio Badolato — The top layer shows a simulation of the nanostructure confining the light in the tiny red regions. The second layer is the design generated by an approach that mimics evolutionary biology. The bottom two layers show electron micrographs of the realized nanostructure in silicon. The sharp peak on the left is the trace of the long trapping of light. (Credit: Fabio Badolato)

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