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![]() London, UK (SPX) Apr 20, 2011 The largest disturbances to the Earth's geomagnetic environment occur when it is buffeted by solar material hurled in our direction by explosive changes in the Sun's atmosphere. These Coronal Mass Ejections or CMEs contain approximately a billion tonnes of ionized gas or plasma and can have a dramatic and damaging impact on everything from satellites to power grids. Now a team of scientists have used two spacecraft to study these events in unprecedented detail. Graduate student Anthony Williams of ... read more |
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![]() Could Low-Cost Space Missions Keep Astronomy Aiming High Whether in the present so-called 'age of austerity' or more generous times, arguing for funds for space exploration can sometimes be hard and constrained budgets mean that some excellent scientific ... more | .. |
![]() The Shocking Environment Of Hot Jupiters Jupiter-like worlds around other stars push shock waves ahead of them, according to a team of U.K. astronomers. Just as the Earth's magnetic "bow-shock" protects us from the high-energy solar wind, ... more | .. |
![]() Search For Dark Matter Moves One Step Closer To Detecting Elusive Particle Dark matter, the mysterious substance that may account for nearly 25 percent of the universe, has so far evaded direct observation. But researchers from UCLA, Columbia University and other instituti ... more | .. | ||
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![]() IAU Global Office Of Astronomy For Development Launched The South African Minister of Science and Technology, Mrs Naledi Pandor, has launched the IAU Global Office of Astronomy for Development at the headquarters of the South African Astronomical Observa ... more | .. |
![]() Large Galaxies Stopped Growing Seven Billion Years Ago Galaxies are thought to develop by the gravitational attraction between and merger of smaller 'sub-galaxies', a process that standard cosmological ideas suggest should be ongoing. But new data ... more | .. |
![]() Zoom-Up Star Photos Poke Holes In Century-Old Astronomical Theory The hottest stars in the universe spin so fast that they get a bit squished at their poles and dimmer around their middle. The 90-year-old theory that predicts the extent of this "gravity darkening" ... more | .. |
![]() Kepler's Census Of Sun-Like Stars NASA's Kepler Mission has detected changes in brightness in 500 Sun-like stars, giving astronomers a much better idea about the nature and evolution of the stars. Prior to Kepler's launch in M ... more |
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![]() Celestial Fireworks From Dying Stars This image of the nebula NGC 3582, which was captured by the Wide Field Imager on the MPG/ESO 2.2-metre telescope at ESO's La Silla Observatory in Chile, shows giant loops of gas bearing a striking ... more | .. |
![]() The Watched Pot And Fast CMEs Back in 2008, the solar cycle plunged into the deepest minimum in nearly a century. Sunspots all but vanished, solar flares subsided, and the sun was eerily quiet. "Ever since, we've been wait ... more | .. |
![]() Far-Future Astronomers Could Still Deduce The Big Bang One trillion years from now, an alien astronomer in our galaxy will have a difficult time figuring out how the universe began. They won't have the evidence that we enjoy today. Edwin Hubble ma ... more | .. |
![]() Israel becomes CERN nuclear group member Israel's cabinet on Sunday announced it had approved the country's membership in the European Organisation for Nuclear Research, becoming the research group's first non-European delegation. ... more |
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![]() New Data From XENON100 Narrows The Possible Range For Dark Matter An International team of scientists in the XENON collaboration, including several from the Weizmann Institute, announced on Thursday the results of their search for the elusive component of our univ ... more | .. |
![]() LockMart Scientists Discover Mechanism That Could Feed Solar Explosions Coronal Mass Ejections (CMEs) are violent solar explosions that can propel up to 10 billion tons of the Sun's atmosphere - at a million miles an hour - out through the corona and into space. These f ... more | .. |
![]() Solar Activity Heats Up If you've ever stood in front of a hot stove, watching a pot of water and waiting impatiently for it to boil, you know what it feels like to be a solar physicist. Back in 2008, the solar cycle plung ... more | .. |
![]() Titan-Like Exoplanets A new study says that worlds that orbit red dwarfs, and even rogue planets with no stars to call home, might have surface oceans loaded with organic compounds, making them similar to Saturn's moon T ... more |
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![]() Fast-Rotating Asteroid Winks For Astronomer's Camera Video imaging of newly discovered asteroid 2011 GP59 shows the object appearing to blink on and off about once every four minutes. Amateur astronomers, including Nick James of Chelmsford, Esse ... more | .. |
![]() Cold Asteroids May Have A Soft Heart A new analysis of one of the most well-known meteorites on Earth provides strong evidence that the prevailing view of many asteroids is wrong. Rather than randomly mixed blobs of rock and dust stuck ... more | .. |
![]() The PI's Perspective: Pinch Me! New Horizons is healthy and on course. In mid-March, our spacecraft passed the orbit of Uranus, more than 19 astronomical units (AU) from the sun. In fact, we're now almost 20 times as far from the ... more | .. |
![]() Geomagnetic Storm Subsiding April 12, 2011: A G1-class geomagnetic storm is in progress, sparked by a high-speed solar wind stream which is buffeting Earth's magnetic field. High latitude sky watchers should be alert for auror ... more |
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![]() Hunting For Milky Way's Heaviest Stars Like looking for Easter eggs in a lawn of long grass, the hunt for the Milky Way's most massive stars takes persistence and sharp eyes. In their stellar search through our Galactic backyard, astrono ... more | .. |
![]() Herschel Links Star Formation To Sonic Booms ESA's Herschel space observatory has revealed that nearby interstellar clouds contain networks of tangled gaseous filaments. Intriguingly, each filament is approximately the same width, hinting that ... more | .. |
![]() Physicists Discover New Way To Visualize Warped Space And Time When black holes slam into each other, the surrounding space and time surge and undulate like a heaving sea during a storm. This warping of space and time is so complicated that physicists haven't b ... more | .. |
![]() First Galaxies Were Born Much Earlier Than Expected Using the amplifying power of a cosmic gravitational lens, astronomers have discovered a distant galaxy whose stars were born unexpectedly early in cosmic history. This result sheds new light on the ... more |
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![]() Space Jets In A Bottle By creating space-like conditions in a slim 4m vessel, Italian researchers have helped confirm the behaviour of astrophysical jets - streams of charged particles shot out by supermassive black holes ... more | .. |
![]() Scientists Find New Type of Mineral in Historic Meteorite NASA and co-researchers from the United States, South Korea and Japan have found a new mineral named "Wassonite" in one of the most historically significant meteorites recovered in Antarctica in Dec ... more | .. |
![]() WISE Mission Spots 'Horseshoe' Asteroid An asteroid recently discovered by NASA's Wide-field Infrared Survey Explorer (WISE) may be a bit of an oddball. Most near-Earth asteroids - NEAs for short - have eccentric, or egg-shaped, orbits th ... more | .. |
![]() BRP To Contribute To Canadian Moon And Mars Exploration Programs BRP, in cooperation with the Centre de technologies avancees BRP-Universite de Sherbrooke (CTA), will develop the chassis and locomotion systems for a Lunar Exploration Light Rover and a Mars Explor ... more |
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![]() Dark Skies For Eta Aquarid Meteor Shower In Early May Would you like to see a piece of Halley's comet? Now's your chance! Each spring as Earth passes through the debris trail from Halley's Comet (1P/Halley), the cosmic bits burn up in our atmosphere an ... more | .. |
![]() NASA's Jupiter-Bound Spacecraft Arrives In Florida NASA's Juno spacecraft has arrived in Florida to begin final preparations for a launch this summer. The spacecraft was shipped from Lockheed Martin Space Systems, Denver, to the Astrotech payload pr ... more | .. |
![]() A New Way To Find Planets Astronomers have come up with a new way of identifying close, faint stars with NASA's Galaxy Evolution Explorer satellite. The technique should help in the hunt for planets that lie beyond our solar ... more | .. |
![]() Galaxies formed sooner after Big Bang than thought Astronomers said on Tuesday they believed the first galaxies formed just 200 million years after the Big Bang, a finding that challenges assumptions of how the Universe grew from infancy into childhood. ... more |
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