April 26, 2016

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Astronomers Use Light Echoes to Measure Protoplanetary Disk

Spitzer Uses Light Echoes to Give Clues to Protoplanetary Disk

Using data from NASA’s Spitzer Space Telescope and four ground-based telescopes, astronomers determine the distance from a star to the inner rim of its surrounding protoplanetary disk. Imagine you want to measure the size of a room, but it’s completely dark. If you shout, you can tell if the space you’re in is relatively big […]

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April 26, 2016

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Astronomers Gain a Better Understanding of Spica

Stellar Modelling of Spica

A newly published study details Spica, an eccentric double-lined spectroscopic binary system with a β Cep type variable primary component. The familiar star Spica (Alpha Virginis) is the fifteenth brightest star in the night sky, in part because it is relatively nearby, only about 250 light-years away. It is easy to find by following the […]

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April 25, 2016

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New Study Shows Fructose Alters Brain Genes, Which Can Lead to Disease

New Research Shows Fructose Alters Brain Genes, Can Lead to Disease

A new study by researchers at UCLA reveals that genes in the brain can be damaged by fructose, leading to diseases like diabetes, cardiovascular disease, Alzheimer’s disease and attention deficit hyperactivity disorder. A range of diseases — from diabetes to cardiovascular disease, and from Alzheimer’s disease to attention deficit hyperactivity disorder — are linked to […]

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April 25, 2016

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New Study Traces the Impact of Volcanic Activity on Climate Change

New Research Traces the Impact of Volcanic Activity on Climate Change

A newly published study shows that for the majority of Earth’s history, continental arc volcanism has been the main driver of long-term climate variability. A geology-based analysis of Earth’s climate history over the past 700 million years provides evidence that climate change has occurred traditionally through slow shifts in the release of carbon dioxide — […]

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April 25, 2016

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NASA to Begin Historic New Era of X-Plane Research

NASA Moves to Begin Historic New Era of X-Plane Research

NASA’s aeronautical innovators are preparing to put in the sky an array of new experimental aircraft, each intended to carry on the legacy of demonstrating advanced technologies that will push back the frontiers of aviation. History is about to repeat itself. There have been periods of time during the past seven decades – some busier […]

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April 21, 2016

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New Horizons Image Shows Pluto’s ‘Halo’ Craters

New Horizons Views Pluto’s ‘Halo’ Craters

This newly released image from the New Horizons Spacecraft looks within Pluto’s informally named Vega Terra region, showing a field of eye-catching craters that looks like a cluster of bright halos scattered across a dark landscape. The region is far west of the hemisphere NASA’s New Horizons spacecraft viewed during close approach last summer. The […]

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April 21, 2016

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Hubble Views the Bubble Nebula

Hubble Views a Star ‘Inflating’ a Giant Bubble

Just in time for the 26th anniversary of Hubble’s launch on April 24, 1990, the telescope has photographed an enormous, balloon-like bubble being blown into space by a super-hot, massive star. Astronomers trained the iconic telescope on this colorful feature, called the Bubble Nebula, or NGC 7635. “As Hubble makes its 26th revolution around our […]

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April 20, 2016

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Scientists Identify a Free-Floating, Planetary-Mass Object in TW Hydrae

Astronomers Find Lone Planetary-Mass Object in Family of Stars

New data from WISE and its predecessor, the Two Micron All Sky Survey, reveals the lowest-mass free-floating object in TW Hydrae family — a likely brown dwarf called WISEA J114724.10−204021.3. In 2011, astronomers announced that our galaxy is likely teeming with free-floating planets. In fact, these lonely worlds, which sit quietly in the darkness of […]

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April 19, 2016

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Fermi Observations Poised to Pin Down Gravitational Wave Sources

Fermi Telescope Poised to Pin Down Gravitational Wave Sources

Fermi observations are helping researchers gain a much deeper understanding of gravitational waves. On September 14, waves of energy traveling for more than a billion years gently rattled space-time in the vicinity of Earth. The disturbance, produced by a pair of merging black holes, was captured by the Laser Interferometer Gravitational-Wave Observatory (LIGO) facilities in […]

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April 19, 2016

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New Images Reveal More Details on Ceres’ Craters

New Ceres Images Reveal Bright Craters

NASA’s Dawn spacecraft has revealed marvelous sights on dwarf planet Ceres during its first year in orbit, including the mysterious bright spots in Occator Crater. Craters with bright material on dwarf planet Ceres shine in new images from NASA’s Dawn mission. In its lowest-altitude mapping orbit, at a distance of 240 miles (385 kilometers) from […]

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April 19, 2016

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Hubble Image of the Week – Elegance Conceals an Eventful Past

Hubble Views NGC 4111

This newly released Hubble image shows lenticular galaxy NGC 4111. The elegant simplicity of NGC 4111, seen here in this image from the NASA/ESA Hubble Space Telescope, hides a more violent history than you might think. NGC 4111 is a lenticular, or lens-shaped, galaxy, lying about 50 million light-years from us in the constellation of […]

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April 18, 2016

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New Debugging Method Finds 23 Undetected Security Flaws in Popular Web Applications

New Debugging Method Finds Undetected Security Flaws in Popular Web Applications

A new debugging system found 23 previously undiagnosed security flaws in 50 popular Web applications, and it took no more than 64 seconds to analyze any given program. By exploiting some peculiarities of the popular Web programming framework Ruby on Rails, MIT researchers have developed a system that can quickly comb through tens of thousands […]

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April 18, 2016

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New Horizons Shows Pluto’s Haze Varies in Brightness

New Research Shows Pluto’s Haze Varies in Brightness

New images from NASA’s New Horizons Spacecraft reveal that Pluto’s haze varies in brightness. Scientists on NASA’s New Horizons mission team are learning more about the structure and behavior of Pluto’s complex atmosphere by discovering new attributes of its extensive haze layers. The hazes were first discovered by New Horizons in July, as the spacecraft […]

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April 18, 2016

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Cassini Y-Shaped Discontinuity on Enceladus

Cassini Spacecraft Views Enceladus' South Pole

NASA’s Cassini Spacecraft views a Y-shaped discontinuity on Enceladus’ south pole. A sinuous feature snakes northward from Enceladus’ south pole like a giant tentacle. This feature, which stretches from the terminator near center, toward upper left, is actually tectonic in nature, created by stresses in Enceladus’ icy shell. Geologists call features like these on Enceladus […]

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April 18, 2016

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Zipf’s Law from Scale-free Geometry – Like Galaxies, Like Cities

Zipf's Law from Scale-Free Geometry

Abstract: The spatial distribution of people exhibits clustering across a wide range of scales, from household (∼10−2 km) to continental (∼104 km) scales. Empirical data indicates simple power-law scalings for the size distribution of cities (known as Zipf’s law) and the population density fluctuations as a function of scale. Using techniques from random field theory […]

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April 14, 2016

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Harvard Research Shows For Life Expectancy, Money Matters

Study Shows Money Matters For Life Expectancy

New research from Harvard University shows that being poor in the United States is hazardous to your health, revealing that the average life expectancy of the lowest-income classes in America is now equal to that in Sudan or Pakistan. A Harvard analysis of 1.4 billion Internal Revenue Service records on income and life expectancy that […]

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April 14, 2016

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New Spitzer Image: A Space Spider Watches Over Young Stars

New Spitzer Image of the Spider Nebula

This new infrared image from NASA’s Spitzer Space Telescope and the Two Micron All Sky Survey shows IC 417, which is about 10,000 light-years away. A nebula known as “the Spider” glows fluorescent green in an infrared image from NASA’s Spitzer Space Telescope and the Two Micron All Sky Survey (2MASS). The Spider, officially named […]

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April 13, 2016

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New Discovery Challenges Dark Matter, Stellar Acceleration Models

New Hypervelocity Binary Star Challenges Dark Matter, Stellar Acceleration Models

Astronomers have discovered a hypervelocity binary star that challenges dark matter and stellar acceleration models. A team of astronomers at the Friedrich Alexander University led by Péter Németh has discovered a binary star moving nearly at the escape velocity of our galaxy. There are about two dozen so-called hypervelocity stars known to be escaping the […]

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