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Mystery Of Solar Tsunami - Solved Huntsville AL (SPX) Nov 20, 2009 
Sometimes you really can believe your eyes. That's what NASA's Solar Terrestrial Relations Observatory (STEREO) is telling researchers about a controversial phenomenon on the sun known as the "solar tsunami." Years ago, when solar physicists first witnessed a towering wave of hot plasma racing across the sun's surface, they doubted their senses. The scale of the wave was staggering: It ... read moreNASA's Solar Dynamics Observatory Investigates Sun's Highs And Lows 
Greenbelt MD (SPX) Nov 19, 2009How intense will the next solar cycle be? Can we predict when a violent solar storm will blast Earth with energetic particles? Could a prolonged period of inactivity on the sun plunge Earth into a prolonged winter? These are a few of the questions that scientists anticipate the new Solar Dynamics Observatory (SDO) will help to answer. Scheduled to launch this winter on an Atlas V rocket ... more
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A Bubbling Ball Of Gas
Bonn, Germany (SPX) Nov 12, 2009The Sun is a bubbling mass. Packages of gas rise and sink, lending the sun its grainy surface structure, its granulation. Dark spots appear and disappear, clouds of matter dart up - and behind the whole thing are the magnetic fields, the engines of it all. The SUNRISE balloon-borne telescope, a collaborative project between the Max Planck Institute for Solar System Research in Katlenburg ... more Solar Winds Triggered By Magnetic Fields 
London, UK (SPX) Nov 04, 2009Solar wind generated by the sun is probably driven by a process involving powerful magnetic fields, according to a new study led by UCL researchers based on the latest observations from the Hinode satellite. Scientists have long speculated on the source of solar winds. The Extreme Ultraviolet Imaging Spectrometer (EIS), on board the Japanese-UK-US Hinode satellite, is now generating ... more The Sun's Sneaky Variability 
Huntsville AL (SPX) Oct 28, 2009Every 11 years, the sun undergoes a furious upheaval. Dark sunspots burst forth from beneath the sun's surface. Explosions as powerful as a billion atomic bombs spark intense flares of high-energy radiation. Clouds of gas big enough to swallow planets break away from the sun and billow into space. It's a flamboyant display of stellar power. So why can't we see any of it? Almost none ... more MESSENGER Gets Closest Look At Solar-Flare Neutrons 
Tempe AZ (SPX) Oct 27, 2009On Dec. 31, 2007, the Sun awoke from the relatively quiescent period between Solar Cycles 23 and 24 to produce a solar flare that spewed high-energy neutrons into interplanetary space. The Neutron Spectrometer flying aboard NASA's MESSENGER spacecraft recorded the event, giving scientists a first-ever, up-close look at neutron production from a solar flare. In fact, it was the first time ... more |
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Chandrayaan Enables Study Interaction Without Magnetic Field
Bangalore, India (PTI) Sep 10, 2009A Chandrayaan-1 moon mission payload has enabled scientists to study the interaction between the solar wind and a planetary body like moon without a magnetic field, a meeting convened by ISRO was told. The payload in question is a joint one of Sweden and India - Sub KeV Atom Reflecting Analyser (SARA) which covered the entire lunar surface several times, ISRO said in a statement at the end ... more Are Sunspots Disappearing 
Huntsville AL (SPX) Sep 04, 2009The sun is in the pits of the deepest solar minimum in nearly a century. Weeks and sometimes whole months go by without even a single tiny sunspot. The quiet has dragged out for more than two years, prompting some observers to wonder, are sunspots disappearing? "Personally, I'm betting that sunspots are coming back," says researcher Matt Penn of the National Solar Observatory (NSO) in ... more Scientists Uncover Solar Cycle, Stratosphere And Ocean Connections 
Boulder CO (SPX) Sep 01, 2009Subtle connections between the 11-year solar cycle, the stratosphere, and the tropical Pacific Ocean work in sync to generate periodic weather patterns that affect much of the globe, according to research appearing in the journal Science. The study can help scientists get an edge on eventually predicting the intensity of certain climate phenomena, such as the Indian monsoon and tropical Pacific ... more Small Fluctuations In Solar Activity, Large Influence On The Climate 
Bonn, Germany (SPX) Sep 01, 2009Our sun does not radiate evenly. The best known example of radiation fluctuations is the famous 11-year cycle of sun spots. Nobody denies its influence on the natural climate variability, but climate models have, to-date, not been able to satisfactorily reconstruct its impact on climate activity. Researchers from the USA and from Germany have now, for the first time, successfully simulated ... more |
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