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New Modeling Reveals that Tilted Orbits Could Make More Worlds Habitable

April 16, 2014

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New research from astrobiologists at NASA’s Goddard Space Flight Center reveals that large amplitude, high frequency obliquity oscillations on Earth-like exoplanets can suppress the ice-albedo feedback, increasing the outer edge of the habitable zone. Pivoting planets that lean one way and then change orientation within a short geological time period might be surprisingly habitable, according […]

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Supercomputers Help Researchers Understand Black Holes

April 15, 2014

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Using supercomputers like Stampede at the Texas Advanced Computing Center and Kraken at the National Institute for Computational Sciences, researchers try to predict and better understand the observational signatures of events like black holes devouring stars. Somewhere in the cosmos an ordinary galaxy spins, seemingly at slumber. Then all of a sudden, WHAM! A flash […]

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Newly Released Hubble Image of Spiral Galaxy NGC 3455

April 14, 2014

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This newly released Hubble image shows spiral galaxy NGC 3455. Shown here is a spiral galaxy known as NGC 3455, which lies some 65 million light-years away from us in the constellation of Leo (The Lion). Galaxies are classified into different types according to their structure and appearance. This classification system is known as the […]

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Researchers Discover the First Exomoon Candidate

April 11, 2014

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By using gravitational microlensing and taking advantage of chance alignments between stars, an international team of researchers has spotted the first signs of an exomoon. Titan, Europa, Io and Phobos are just a few members of our solar system’s pantheon of moons. Are there are other moons out there, orbiting planets beyond our sun? NASA-funded […]

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Study Reveals Ancient Impact of Massive Asteroid

April 10, 2014

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A newly published study reveals an ancient asteroid impact that left a crater nearly 500 kilometers across: up to two and a half times larger in diameter than the crater formed by the dinosaur-killing asteroid. Washington, D.C. — Picture this: A massive asteroid almost as wide as Rhode Island and about three to five times […]

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Study Shows Nanoparticles in Consumer Products Can Damage DNA

April 9, 2014

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Using high-speed screening technology to analyze DNA, a newly published study found that nanoparticles commonly added to consumer products can significantly damage DNA. Thousands of consumer products — including cosmetics, sunscreens, and clothing — contain nanoparticles added by manufacturers to improve texture, kill microbes, or enhance shelf life, among other purposes. However, several studies have […]

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Astronomers Make the Most Precise Measurement Yet of the Expanding Universe

April 8, 2014

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Using 140,000 distant quasars, astronomers from the Sloan Digital Sky Survey have made the most precise measurement to date of the expanding Universe. The Baryon Oscillation Spectroscopic Survey (BOSS), the largest component of the third Sloan Digital Sky Survey (SDSS-III), pioneered the use of quasars to map density variations in intergalactic gas at high redshifts, […]

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Fermi Data Reveal New Clues to Dark Matter

April 4, 2014

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New maps from the Fermi-LAT Collaboration show that the galactic center produces more high-energy gamma rays than can be explained by known sources, suggesting that this excess emission is consistent with some forms of dark matter. A new study of gamma-ray light from the center of our galaxy makes the strongest case to date that […]

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Astrophysicists Challenge the Cosmological Model

April 3, 2014

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By comparing the predictions of state-of-the-art supercomputer simulations with the results of sophisticated statistical analyses of the cosmic background radiation, two independent studies are challenging the cosmological model. Astronomers Professor Chris Collins and Dr Ian McCarthy from LJMU’s Astrophysics Research Institute are challenging the view that the currently preferred cosmological model of the Universe is […]

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New Study Reveals Amount of Water Present in the Moon May Have Been Overestimated

April 2, 2014

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New computer simulations show that the unusually hydrogen-rich apatite crystals observed in many lunar rock samples may not have formed within a water-rich environment, revealing that the amount of water present in the moon may have been overestimated. The amount of water present in the moon may have been overestimated by scientists studying the mineral […]

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Biomedical Engineers Grow Self-Healing Muscle

April 1, 2014

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Biomedical engineers from Duke University have grown living skeletal muscle that demonstrates the ability to heal itself both inside the laboratory and inside an animal. Biomedical engineers have grown living skeletal muscle that looks a lot like the real thing. It contracts powerfully and rapidly, integrates into mice quickly, and for the first time, demonstrates […]

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Nanoparticle Temporarily Violates the Second Law of Thermodynamics

March 31, 2014

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In a newly published study, an international team of researchers detail how they discovered that a nanoparticle trapped with laser light temporarily violates the second law of thermodynamics. Objects with sizes in the nanometer range, such as the molecular building blocks of living cells or nanotechnological devices, are continuously exposed to random collisions with surrounding […]

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