February 23, 2015

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A Closer Look at the Colors of the Small Magellanic Cloud

New Image of the Small Magellanic Cloud

This composite image used data from Herschel’s Spectral and Photometric Imaging Receiver (SPIRE), Photodetector Array Camera and Spectrometer (PACS), and Spitzer’s Multiband Imaging Photometer (MIPS) to get a better view of the Small Magellanic Cloud. Astronomical images often look like works of art. This picture of one of our nearest neighboring galaxies, the Small Magellanic […]

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February 23, 2015

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New Circuit Reduces Power Leakage When Transmitters Are Idle

New Circuit Reduces Power Leakage

Engineers have developed a new transmitter design that reduces off-state leakage 100-fold. At the same time, this new technology provides adequate power for Bluetooth transmission, or for the even longer-range 802.15.4 wireless-communication protocol. At this year’s Consumer Electronics Show in Las Vegas, the big theme was the “Internet of things” — the idea that everything […]

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February 23, 2015

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Neuroscientists Examine How Brain Waves Guide Memory Formation

Neuroscientists Reveal How Brain Waves Guide Memory Formation

New research from MIT shows that the hippocampus and the prefrontal cortex use two different brain-wave frequencies to communicate as the brain learns to associate unrelated objects. Our brains generate a constant hum of activity: As neurons fire, they produce brain waves that oscillate at different frequencies. Long thought to be merely a byproduct of […]

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February 23, 2015

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Hubble Image of Globular Cluster Palomar 12

Hubble Views Globular Cluster Palomar 12

Using Hubble’s Advanced Camera for Surveys, astronomers view a globular cluster of stars known as Palomar 12. Panta rhei is a simplified version of the famous Greek philosopher Heraclitus’ teachings. It basically means, everything flows. And everything in the Universe is indeed continually on the move, spiraling and shifting through space. Some cosmic objects move […]

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February 23, 2015

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Hubble Image of the Week – A Galactic Cloak for an Exploding Star

New Hubble Image of Spiral Galaxy NGC 4424

This newly released Hubble image shows spiral galaxy NGC 4424. The galaxy pictured here is NGC 4424, located in the constellation of Virgo. It is not visible with the naked eye but has been captured here with the NASA/ESA Hubble Space Telescope. Although it may not be obvious from this image, NGC 4424 is in […]

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February 20, 2015

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Ultraviolet Radiation Continues to Damage Skin After Sun Exposure

Ultraviolet Radiation Continues to Damage Skin in the Dark

A newly published study from Yale University reveals that much of the damage that ultraviolet radiation (UV) does to skin occurs hours after sun exposure. Much of the damage that ultraviolet radiation (UV) does to skin occurs hours after sun exposure, a team of Yale-led researchers concluded in a study that was published online February […]

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February 20, 2015

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The Formation of a Quadruple Star System

Astronomers View the Formation of a Quadruple Star System

Astronomers have discovered a nearby stellar nursery where quadruplets are being born. More than half of all stars are in multiple systems: binary stars, or even triplets or quadruplets, that orbit one another. No one is quite sure how or why they form, but the effects can be significant, for example influencing the character of […]

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February 20, 2015

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Hubble Reveals Detailed View of Circumstellar Debris Disk Encircling Beta Pictoris

Hubble Views Beta Pictoris

Using NASA’s Hubble Space Telescope, astronomers have captured the most detailed picture to date of a large disk of gas and dust encircling the 20 million-year-old star Beta Pictoris. Beta Pictoris is the only star to date where astronomers have detected an embedded giant planet in a directly-imaged debris disk. The planet, which was discovered […]

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February 20, 2015

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NuSTAR and XMM-Newton Telescopes Give Shape to Black Hole Winds

NuSTAR and XMM-Newton Telescopes Reveal Furious Black Hole Winds

Using NASA’s NuSTAR and ESA’s XMM-Newton telescopes astronomers have measured the strength of ultra-fast winds from a supermassive black hole, proving that the winds are powerful enough to inhibit the host galaxy’s ability to make new stars. NASA’s Nuclear Spectroscopic Telescope Array (NuSTAR) and ESA’s (European Space Agency) XMM-Newton telescope are showing that fierce winds […]

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February 19, 2015

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Dark Matter Influences Supermassive Black Hole Growth

Dark Matter Guides Growth of Supermassive Black Holes

Using data from the Sloan Digital Sky Survey and the ROSAT X-ray satellite’s all-sky survey, researchers from the Harvard-Smithsonian Center for Astrophysics detail a distinct relationship between the mass of a dark matter halo and the mass of a black hole. Cambridge, Massachusetts – Every massive galaxy has a black hole at its center, and […]

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February 19, 2015

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NASA’s Van Allen Probes Capture the Effects of a Solar Shockwave

Van Allen Probes Capture the Effects of a Solar Shockwave

NASA’s Van Allen Probes have captured the effects of a solar shockwave on Earth’s radiation from beginning to end for the first time. On October 8, 2013, an explosion on the sun’s surface sent a supersonic blast wave of solar wind out into space. This shockwave tore past Mercury and Venus, blitzing by the moon […]

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February 19, 2015

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Yale Neurobiologists Discover Surprising Trigger of New Brain Cell Growth

Researchers Find Trigger of New Brain Cell Growth

A newly published study from Yale University shows that adult hippocampal neural stem cells (NSCs) express vascular endothelial growth factor receptor (VEGFR) 3 and its ligand VEGF-C, which activates quiescent NSCs to enter the cell cycle and generate progenitor cells. Scientists have discovered that the human brain can produce new neurons, but exactly how those […]

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February 19, 2015

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MAVEN Spacecraft Completes First Deep Dip Campaign of Martian Atmosphere

MAVEN Completes First Deep Dip Campaign

NASA’S MAVEN spacecraft has completed its first deep-dip maneuver, gathering measurements closer to the top of the lower atmosphere of Mars. NASA’S Mars Atmosphere and Volatile Evolution has completed the first of five deep-dip maneuvers designed to gather measurements closer to the lower end of the Martian upper atmosphere. “During normal science mapping, we make […]

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February 19, 2015

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New Horizons Spots Small Moons Orbiting Pluto

New Horizons Sees Small Moons Orbiting Pluto

NASA’s New Horizons spacecraft views Pluto’s moons Nix and Hydra as it continues on its journey toward the dwarf planet. Exactly 85 years after Clyde Tombaugh’s historic discovery of Pluto, the NASA spacecraft set to encounter the icy dwarf planet this summer is providing its first views of the small moons orbiting Pluto. The moons […]

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February 18, 2015

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New Anti-HIV Candidate Blocks Every Strain of HIV-1, HIV-2 and SIV

Scientists Announce New Anti-HIV Agent

In a new study, researchers show that a new drug candidate blocks every strain of HIV-1, HIV-2 and SIV that has been isolated from humans or rhesus macaques, including the hardest-to-stop variants. Jupiter, Florida – February 18, 2015 – In a remarkable new advance against the virus that causes AIDS, scientists from the Jupiter, Florida […]

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February 18, 2015

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The Closest Known Flyby of a Star to Our Solar System

Astronomers Identify the Closest Known Flyby of a Star to Our Solar System

A newly published study from the University of Rochester details the closest known flyby of a star to our solar system – a dim star that passed through the Oort Cloud 70,000 years ago. A group of astronomers from the US, Europe, Chile and South Africa have determined that 70,000 years ago a recently discovered […]

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February 18, 2015

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New Approach Improves Execution Times and Efficiency of Multicore Chips

New Approach Could Make Multicore Chips Much Faster

New research from MIT describes a system that cleverly distributes data around multicore chips’ memory banks, improving execution times by 18 percent on average while actually increasing energy efficiency. Computer chips’ clocks have stopped getting faster. To keep delivering performance improvements, chipmakers are instead giving chips more processing units, or cores, which can execute computations […]

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