April 17, 2015

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Meteorites Reveal Evidence of Moon-Forming Impact

Chelyabinsk Meteorite

A newly published study uses the impact heat signatures in meteorites to date the Moon-forming impact between a large protoplanet and proto-Earth. The inner Solar System’s biggest known collision was the moon-forming giant impact between a large protoplanet and the proto-Earth. Kilometer-sized fragments from this impact hit main belt asteroids at much higher velocities than […]

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April 17, 2015

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Chandra Finds Evidence of a Planet Possibly Ripped Apart by a White Dwarf Star

White Dwarf Star Rips Apart a Planet

By combining data from Chandra and several other telescopes, researchers think they have discovered the remains of a planet that may have been ripped apart by a white dwarf star in the outskirts of the Milky Way. The destruction of a planet may sound like the stuff of science fiction, but a team of astronomers […]

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April 17, 2015

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NASA’s Dawn Spacecraft Views Ceres’ North Pole

Dawn Glimpses Ceres

NASA’s Dawn spacecraft has captured the highest-resolution views of Ceres to date. After spending more than a month in orbit on the dark side of dwarf planet Ceres, NASA’s Dawn spacecraft has captured several views of the sunlit north pole of this intriguing world. These images were taken on April 10 from a distance of […]

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April 16, 2015

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Manipulating Cell Division Will Help Grow Trees Bigger and Faster

Wood Formation in Trees Is Increased by Manipulating PXY-Regulated Cell Division

A newly published study details how to make trees grow bigger and faster, which could increase supplies of renewable resources and help trees cope with the effects of climate change. In the study, published in Current Biology, researchers from the University of Manchester successfully manipulated two genes in poplar trees in order to make them […]

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April 16, 2015

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Dark Energy Survey Reveals Detailed Guide to Spotting Dark Matter

Dark Energy Survey Creates Detailed Guide to Spotting Dark Matter

Scientists have created the largest single high definition map of dark matter, helping researchers understand the role that dark matter plays in galaxy formation. Scientists on the Dark Energy Survey have released the first in a series of dark matter maps of the cosmos. These maps, created with one of the world’s most powerful digital […]

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April 16, 2015

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New Study Helps Explain Increased Risk of Diabetes in Shift Workers

New Research Helps Explain Increased Risk of Diabetes in Shift Workers

New research from Brigham and Women’s Hospital links blood sugar and the internal clock, and may help develop and improve strategies for controlling glucose levels in day-active people and night workers. A new study may help explain why glucose tolerance — the ability to regulate blood-sugar levels — is lower at dinner than at breakfast […]

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April 16, 2015

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Double-Walled Carbon Nanotubes Display Singular Qualities

Double-Walled Carbon Nanotubes Have Singular Qualities

In a newly published study, researchers at Rice University demonstrated that two walls are better than one when turning carbon nanotubes into materials like strong, conductive fibers or transistors. Rice materials scientist Enrique Barrera and his colleagues used atomic-level models of double-walled nanotubes to see how they might be tuned for applications that require particular […]

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April 16, 2015

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Gold Nanoparticles Intensify Cancer-Killing Radiation

Gold Enhances Radiation Effect on Cancer Cells

Using gold nanoparticles tethered to acid-seeking compounds called pHLIPs, a team of researchers has demonstrated a more precise method for targeting cancer cells with radiation. Providence, Rhode Island (Brown University) — Researchers from Brown University and the University of Rhode Island have demonstrated a promising new way to increase the effectiveness of radiation in killing […]

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April 15, 2015

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The Possible First Signs of Self-interacting Dark Matter

Dark Matter Observed Interacting with Other Dark Matter

Using new Hubble Space Telescope imaging and VLT/MUSE integral field spectroscopy, astronomers reveal what may be the first signs of self-interacting dark matter. For the first time dark matter may have been observed interacting with other dark matter in a way other than through the force of gravity. Observations of colliding galaxies made with ESO’s […]

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April 15, 2015

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New MIT Sensor Detects Spoiled Meat

New MIT Developed Sensor Detects Spoiled Meat

Chemists at MIT have developed an inexpensive, portable sensor that can detect gases emitted by rotting meat, allowing consumers to determine whether the meat in their grocery store or refrigerator is safe to eat. The sensor, which consists of chemically modified carbon nanotubes, could be deployed in “smart packaging” that would offer much more accurate […]

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April 15, 2015

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Astronomers Track Icy Tendrils Reaching into Saturn’s E Ring

Icy Tendrils Reaching into Saturn Ring Traced to Their Source

Using Cassini data and computer simulations, astronomers detail the source responsible for icy tendrils that reach into Saturn’s E ring. Long, sinuous, tendril-like structures seen in the vicinity of Saturn’s icy moon Enceladus originate directly from geysers erupting from its surface, according to scientists studying images from NASA’s Cassini spacecraft. This result is published online […]

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April 15, 2015

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NASA’s New Horizons Nears Historic Encounter with Pluto

New Horizons Spacecraft Nears Historic Encounter with Pluto

In just three months, NASA’s New Horizons spacecraft will capture the first-ever close up images and scientific observations of Pluto and its system of large and small moons. “Scientific literature is filled with papers on the characteristics of Pluto and its moons from ground based and Earth orbiting space observations, but we’ve never studied Pluto […]

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April 15, 2015

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Spitzer and OGLE Discover a Planet Deep Within Our Galaxy

Spitzer Finds a Planet Deep Within Our Galaxy

Using a method called microlensing, NASA’s Spitzer Space Telescope and OGLE’s Warsaw Telescope teamed up to reveal a remote gas planet that is located about 13,000 light-years away. The discovery demonstrates that Spitzer — from its unique perch in space — can be used to help solve the puzzle of how planets are distributed throughout […]

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April 14, 2015

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Physicists Make Objects Invisible without Metamaterial Cloaking

Scientists Make Objects Invisible without Metamaterial Cloaking

A team of physicists has managed to make homogenous cylindrical objects completely invisible in the microwave range without relying on metamaterial coatings. The method is based on a new understanding of electromagnetic wave scattering. The scientists studied light scattering from a glass cylinder filled with water. In essence, such an experiment represents a two-dimensional analog […]

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April 14, 2015

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Rosetta and Philae Reveal That Comet 67P is Not Magnetized

Investigating Magnetic Properties of Comet 67P

New data from Rosetta and Philae reveal that the nucleus of Comet 67P/Churyumov-Gerasimenko is not magnetized. Studying the properties of a comet can provide clues to the role that magnetic fields played in the formation of Solar System bodies almost 4.6 billion years ago. The infant Solar System was once nothing more than a swirling […]

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April 14, 2015

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New Approach Halts the Growth of a Very Aggressive Form of Melanoma

Stimulating Major Branches of the Immune System Halts Tumor Growth More Effectively

By stimulating both major branches of the immune system, researchers from MIT were able to halt the growth of a very aggressive form of melanoma in mice. The human immune system is poised to spring into action at the first sign of a foreign invader, but it often fails to eliminate tumors that arise from […]

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April 14, 2015

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Indirect Evidence of Transient Liquid Water on Mars

Curiosity Weather Data Bolsters Case for Brine

New calculations indicate favorable conditions for small quantities of brine to form during some nights throughout the year on Mars. The possibility for liquid brines on Mars has wider implications for habitability and geological water-related processes. Martian weather and soil conditions that NASA’s Curiosity rover has measured, together with a type of salt found in […]

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