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Early Chemistry of a Star’s Protoplanetary Disc Shapes Life-Friendly Atmospheres

April 23, 2014

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A new study reveals that the chemistry of a star’s protoplanetary disc could influence the later composition of planetary atmospheres. Born in a disc of gas and rubble, planets eventually come together as larger and larger pieces of dust and rock stick together. They may be hundreds of light-years away from us, but astronomers can […]

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Amateur Astronomers Combine Data to Reveal New Images of Galaxies

April 23, 2014

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Amateur astronomers and astrophotographers have combined their optical data with the data from some of the world’s most sophisticated space telescopes to reveal new images of galaxies M101, M81, Centaurus A, and M51. Long before the term “citizen science” was coined, the field of astronomy has benefited from countless men and women who study the […]

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Astronomers Reveal Relationship Between the Color of a Galaxy and the Size of Its Bulge

April 22, 2014

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Using data from the Sloan Digital Sky Survey to group together over half a million galaxies of all different colors, shapes, and masses, new research reveals a relatively simple relationship between the color of a galaxy and the size of its bulge – the more massive the bulge the redder the galaxy. The universe we […]

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Researchers Reveal New Method for Studying Binary Star Systems

April 22, 2014

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Using data from the Kepler spacecraft, researchers from the University of Washington confirm the first “self-lensing” binary star system. What looked at first like a sort of upside-down planet has instead revealed a new method for studying binary star systems, discovered by a University of Washington student astronomer. Working with UW astronomer Eric Agol, doctoral […]

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Microgravity Mimics Aging in Immune Cells

April 21, 2014

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Human-T-Lymphocyte (T Cell)

Changes in T-cell behavior quickly occur in space, allowing researchers to more effectively study genetic and molecular changes associated with aging-related immune suppression. Telling someone to “act your age” is another way of asking him or her to behave better. Age, however, does not always bring improvements. Certain cells of the immune system tend to […]

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Hubble Views Globular Cluster Messier 5

April 21, 2014

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This newly released Hubble image shows globular cluster Messier 5, which is located 24,500 light-years away. This sparkling jumble is Messier 5 — a globular cluster consisting of hundreds of thousands of stars bound together by their collective gravity. But Messier 5 is no normal globular cluster. At 13 billion years old it is incredibly […]

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Nearly Completed VPHAS+ Catalog to Include 300 Million Stars

April 18, 2014

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Nearly completed, the VPHAS+ catalog will include stars and nebulae that are as much as 1500 times fainter than the ones in the older catalog, as well as much improved images of all objects. Atomic hydrogen is the lightest and by far most abundant element in the universe. When it is exposed to ultraviolet light, […]

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New Technique Provides Near Real-Time Mapping of the Sun’s Interior

April 18, 2014

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Using data from NASA’s Solar Dynamics Observatory, researchers have developed a new technique that opens the door for near real-time mapping of the sun’s roiling interior. Like a balloon bobbing along in the air while tied to a child’s hand, a tracer has been found in the sun’s atmosphere to help track the flow of […]

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Kepler Discovers Earth-Size Planet Orbiting a Star in the ‘Habitable Zone’

April 18, 2014

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Astronomers have discovered the first Earth-size planet orbiting a star in the “habitable zone,” confirming that Earth-size planets exist in the habitable zones of other stars and signaling a significant step closer to finding a world similar to Earth. Using NASA’s Kepler Space Telescope, astronomers have discovered the first Earth-size planet orbiting a star in […]

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Scientists Reveal Neutron Star Glitches Have a Minimum Size

April 17, 2014

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New research reveals that sudden speed jumps in the rotational velocity of pulsars have a minimum size, and that they are caused not by the unpinning and displacement of just one sub-surface superfluid vortex, but by billions. A team of astronomers, including Danai Antonopoulou and Anna Watts from the Anton Pannekoek Institute of Astronomy (UvA), […]

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Hubble Image Reveals Cross-Section View of the Universe

April 17, 2014

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This newly released Hubble image provides a cross-section view of the Universe, showing objects at different distances and stages in cosmic history. An image of a galaxy cluster taken by the NASA/ESA Hubble Space Telescope gives a remarkable cross-section of the Universe, showing objects at different distances and stages in cosmic history. They range from […]

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Martian Meteorites Yield Clues to the Planet’s Early Atmosphere

April 17, 2014

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Using data from meteorites that fell to Earth from Mars, scientists investigate the chemical composition of the Martian atmosphere throughout history, and learn whether the planet has ever been hospitable to life. Geologists who analyzed 40 meteorites that fell to Earth from Mars unlocked secrets of the Martian atmosphere hidden in the chemical signatures of […]

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