February 26, 2013

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Cassini Views Saturn’s North Polar Hexagon

The North Polar Hexagon of Saturn

Captured by Cassini’s wide-angle camera, this NASA image of the day shows Saturn’s North Polar Hexagon. Saturn’s North Polar Hexagon Saturn’s north polar hexagon basks in the Sun’s light now that spring has come to the northern hemisphere. Many smaller storms dot the north polar region and Saturn’s signature rings, which appear to disappear on […]

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February 25, 2013

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Hubble Image of Planetary Nebula ESO 456-67

Planetary Nebula ESO 456 67

This newly released image from the Hubble Space Telescope shows planetary nebula ESO 456-67. It may look like something from The Lord of the Rings, but this fiery swirl is actually a planetary nebula known as ESO 456-67. Set against a backdrop of bright stars, the rust-colored object lies in the constellation of Sagittarius (The […]

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February 25, 2013

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NanoVelcro Device Grabs Single Cancer Cells from Blood

NanoVelcro Chip Grabs Single Cancer Cells from Blood

UCLA scientists have developed a NanoVelcro Chip that can detect and isolate single cancer cells from patient blood samples for analysis. Researchers at UCLA report that they have refined a method they previously developed for capturing and analyzing cancer cells that break away from patients’ tumors and circulate in the blood. With the improvements to […]

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February 25, 2013

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Scientists Develop a Tool for Reading the Minds of Mice in Real-Time

A System for Observing Real-Time Brain Activity in a Live Mouse

Stanford scientists have developed a technique for observing real-time brain activity in live mice. The new tool may be useful in the fight against neurodegenerative diseases, such as Alzheimer’s. As the mouse explores the arena, neurons in its brain flash green when it recognizes a familiar spot. Courtesy of Mark Schnitzer If you want to […]

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February 25, 2013

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piRNAs Key Role in Coordinating Biological Activity

piRNAs Key Role in Coordinating Biological Activity

A team of Yale researchers discovered that specialized RNAs called piRNAs guide epigenetic factors to numerous sites throughout the genome of the fruit fly Drosophila, where these switches work to turn genes on or off. If a genome is the blueprint for life, then the chief architects are tiny slices of genetic material that orchestrate […]

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February 25, 2013

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Precambrian Micro-Continent Hidden in the Indian Ocean

Continents Hidden Under Lava in the Indian Ocean

Based on the study of lava sand grains from the beach of Mauritius, a newly published study from a group of geoscientists suggests that a micro-continent is hidden under lava in the Indian Ocean. The islands Reunion and Mauritius, both well-known tourist destinations, are hiding a micro-continent, which has now been discovered. The continent fragment […]

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February 25, 2013

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Sideways Motions of Distant Stars Shed New Light on Milky Way Evolution

New Light on Milky Way Evolution

A team of astronomers used Hubble to precisely measure the sideways motions of a small sample of stars located far from the galaxy’s center, shedding new light on the evolution of the Milky Way. Peering deep into the vast stellar halo that envelops our Milky Way galaxy, astronomers using NASA’s Hubble Space Telescope have uncovered […]

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February 25, 2013

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Hubble Views a Herbig-Haro Object

Hubble Views a Young Star

This new Hubble image shows a Herbig-Haro object, a jet of glowing material trailed by an orange-hued plume of gas and dust. This image shows an object known as HH 151, a bright jet of glowing material trailed by an intricate, orange-hued plume of gas and dust. It is located some 460 light-years away in […]

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February 22, 2013

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Using a Fifth Force of Nature to Probe Earth’s Deep Interior

New Way to Probe the Deep Earth Interior

In a newly published study, university researchers propose a new way to probe Earth’s deep interior that relies on a fifth force of nature called a long-range spin-spin interaction. Researchers from Amherst College and The University of Texas at Austin have described a new technique that might one day reveal in higher detail than ever […]

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February 22, 2013

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Supercomputer Simulations Present a New View of Black Hole Jets and Accretion Disks

Black Hole Simulations on XSEDE Supercomputers

New 3D simulations performed on powerful supercomputers are helping researchers predicted the formation of accretion disks and relativistic jets that are shaped by the extreme gravity of black holes and by the powerful magnetic forces generated by their spin. Magneto-spin alignment effect movie by Ralf Kaehler (for Science paper by McKinney, Tchekhovskoy, and Blandford 2012): […]

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February 22, 2013

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Jagged-1 Protein Stimulates Bone Growth

Jagged 1 Stimulates Human Stem Cells to Differentiate into Bone Producing Cells

Scientists from the University of Pennsylvania have discovered that a protein called Jagged-1 stimulates human stem cells to differentiate into bone-producing cells. Philadelphia — Researchers from the University of Pennsylvania School of Veterinary Medicine have discovered that a protein called Jagged-1 stimulates human stem cells to differentiate into bone-producing cells. This protein could help both […]

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February 22, 2013

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Study Shows That Bees and Flowers Communicate Using Electrical Fields

Bees and Flowers Communicate Using Electrical Fields

Scientists from the University of Bristol have discovered that flowers use patterns of electrical signals in concert with the flower’s other attractive signals to enhance floral attraction to insect pollinators such as bumblebees. Flowers’ methods of communicating are at least as sophisticated as any devised by an advertising agency, according to a new study, published […]

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