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Solar Dynamics Observatory Observes New Solar Flare Characteristics
2011-09-08 06:06:56

  NASA's Solar Dynamics Observatory, or SDO, has provided scientists new information about solar flares indicating an increase in strength and longevity that is more than previously thought. Solar flares are intense bursts of radiation from the release of magnetic energy associated with sunspots. They are the solar system's largest explosive events and are seen as bright areas on the sun. Their energy can reach Earth's atmosphere and affect operations of Earth-orbiting...

2011-03-02 12:48:00

WASHINGTON, March 2, 2011 /PRNewswire-USNewswire/ -- NASA-sponsored research has resulted in the first computer model that explains the recent period of decreased solar activity during the sun's 11-year cycle. (Logo: http://photos.prnewswire.com/prnh/20081007/38461LOGO) This recent solar minimum, a period characterized by a lower frequency of sunspots and solar storms, was the deepest observed in almost 100 years. The solar minimum has repercussions on the safety of space travel and...

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2011-03-02 14:05:00

Researchers today provided the first computer model explaining the recent period of decreased solar activity during the Sun's 11-year cycle. This recent solar minimum was the deepest observed in about 100 years. The solar minimum has repercussions on the safety of space travel and the amount of orbital debris our planet accumulates. NASA said that scientists around the world were puzzled by the extended disappearances of sunspots in 2008 through 2009. "Plasma currents deep inside the sun...

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2011-01-06 14:09:23

Observations from NASA's Solar Dynamics Observatory (SDO) and the Japanese satellite Hinode show that some gas in the giant, fountain-like jets in the sun's atmosphere known as spicules can reach temperatures of millions of degrees. The finding offers a possible new framework for how the sun's high atmosphere gets so much hotter than the surface of the sun. What makes the high atmosphere, or corona, so hot "“ over a million degrees, compared to the sun surface's 10,000 degrees...

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2011-01-04 10:10:00

During a total eclipse of the Sun, skywatchers are awed by the shimmering corona -- a faint glow that surrounds the Sun like gossamer flower petals. This outer layer of the Sun's atmosphere is, paradoxically, hotter than the Sun's surface, but so tenuous that its light is overwhelmed by the much brighter solar disk. The corona becomes visible only when the Sun is blocked, which happens for just a few minutes during an eclipse. Now, an instrument on board NASA's Solar Dynamics Observatory...

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2010-09-03 08:20:00

NASA has begun development of a mission to visit and study the sun closer than ever before. The unprecedented project, named Solar Probe Plus, is slated to launch no later than 2018. The small car-sized spacecraft will plunge directly into the sun's atmosphere approximately four million miles from our star's surface. It will explore a region no other spacecraft ever has encountered. NASA has selected five science investigations that will unlock the sun's biggest mysteries. "The experiments...

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2010-07-16 10:41:00

Sometimes a problem is so big, one country cannot handle it alone. That's the message scientists are delivering at today's International Living with a Star (ILWS) meeting in Bremen, Germany, and representatives from more than 25 of the world's most technologically-advanced nations have gathered to hear what they have to say. "The problem is solar storms"”figuring out how to predict them and stay safe from their effects," says ILWS Chairperson Lika Guhathakurta of NASA headquarters. "We...

2010-05-26 10:00:00

PALO ALTO, Calif., May 26 /PRNewswire/ -- The immense volume of data generated by the suite of instruments on NASA's Solar Dynamics Observatory (SDO) requires new tools for efficient identifying and accessing data that is most relevant to research investigations. Scientists at the Solar and Astrophysics Laboratory of the Lockheed Martin (NYSE: LMT) Advanced Technology Center (ATC) in Palo Alto have developed the Heliophysics Events Knowledgebase (HEK) to fill this need. The HEK system...

2010-05-25 09:06:00

WASHINGTON, May 25 /PRNewswire-USNewswire/ -- NASA's Solar Dynamics Observatory, or SDO, has allowed scientists for the first time to comprehensively view the dynamic nature of storms on the sun. Solar storms have been recognized as a cause of technological problems on Earth since the invention of the telegraph in the 19th century. (Logo: http://www.newscom.com/cgi-bin/prnh/20081007/38461LOGO) The Atmospheric Imaging Assembly (AIA), one of three instruments aboard SDO, allowed scientists...


Word of the Day
blee
  • Color; hue; complexion.
This word is Middle English in origin.
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