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Latest Solar flare Stories

RHESSI Mission Celebrates Ten Years And Forty Thousand X-Ray Flares
2012-02-11 04:00:56

[ Watch the Video ] On February 5, 2002, NASA launched what was then called the High Energy Solar Spectroscopic Imager (HESSI) into orbit. Renamed within months as the Ramaty High Energy Solar Spectroscopic Imager (RHESSI) after Reuven Ramaty, a deceased NASA scientist who had long championed the mission, the spacecraft's job was to observe giant explosions on the sun called solar flares. During a solar flare, the gas soars to over 20 million degrees Fahrenheit, and emits X-rays that...

Sun Delivered Curveball Of Powerful Radiation At Earth
2012-02-02 04:32:26

A potent follow-up solar flare, which occurred Friday (Jan. 27, 2012), just days after the Sun launched the biggest coronal mass ejection (CME) seen in nearly a decade, delivered a powerful radiation punch to Earth's magnetic field despite the fact that it was aimed away from our planet. According to University of New Hampshire scientists currently studying and modeling various aspects of solar radiation, this was due to both the existing population of energetic particles launched by the...

NASA Captures Another Massive Solar Flare On January 27: Video
2012-01-30 10:35:37

[ Watch the Video ] The sun unleashed an X1.8 class flare that began at 1:12 PM ET on January 27, 2012 and peaked at 1:37. The flare immediately caused a strong radio blackout at low-latitudes, which was rated an R3 on NOAA's scale from R1-5. The blackout soon subsided to a minor R1 storm. Models from NASA's Goddard Space Weather Center predict that the CME is traveling at over 1500 miles per second. It does not initially appear to be Earth-directed, but Earth may get a glancing blow....

2012-01-27 08:00:00

The geographical sciences website EurekaMag.com publishes insights into specific subjects of all areas of geographical science. The latest review covers Aurora borealis which are the Northern Lights caused by radiation emitted as light from atoms in the upper atmosphere as they are hit by fast-moving electrons and protons. Two other newly published reviews cover Solar Flare which is a large energy release at the sun's surface, and Solar Storm which is a massive burst of solar wind associated...

2012-01-27 16:05:53

Improved Forecasting to Coincide with Peak in Solar Activity After years of relative somnolence, the sun is beginning to stir. By the time it's fully awake in about 20 months, the team at NASA´s Goddard Space Flight Center in Greenbelt, Md., charged with researching and tracking solar activity, will have at their dispoal a greatly enhanced forecasting capability. Goddard's Space Weather Laboratory recently received support under NASA's Space Technology Program Game Changing Program...

Solar Flare Collides With Earth Causing Disruptions
2012-01-25 10:51:51

[ Watch the Video ] A solar flare from Sunday collided with Earth on Tuesday, becoming the largest solar radiation storm since October 2003. NOAA's Space Weather Prediction Center has categorized the storm as "strong," or an S3, storm.  These storms can affect satellite operations and short wave radio propagation, but do not cause any harm to humans on Earth. Some polar flights, including a dozen Delta Air Lines planes, were re-routed to avoid communications lapses and exposing...

Worst Solar Storm Since 2005 To Hit Earth Tuesday
2012-01-23 16:15:09

The National Oceanic and Atmospheric Agency's (NOAA) Space Weather Prediction Center (SWPC) issued a geomagnetic storm watch as experts predicted that the biggest solar storm since 2005 is expected to hit Earth Tuesday morning, various media outlets are reporting. According to Fox News reports, at approximately 11pm Eastern time on Sunday night, the sun released an "immense blast of plasma" that has caused authorities to redirect the flight plans of certain high-altitude aircraft. In...


Latest Solar flare Reference Libraries

6_b41df2b5116346e900bfb8a97da136be2
2004-10-19 04:45:42

Photosphere -- The photosphere of an astronomical object is the region at which the optical depth becomes one. In other words, the photosphere is the place where an object stops being transparent. It is typically used to describe the Sun or another star. Because stars are large balls of gas, they have no solid surface. However, there is a depth at which the gas stops being transparent to photons, and this depth provides a visual surface to the star. The Sun's photosphere has a...

6_9f9676753bcc717a861f93bfceb7d2f82
2004-10-19 04:45:41

Corona -- The corona is the luminous "atmosphere" of the Sun extending millions of kilometers into space, most easily seen during a total solar eclipse. An interesting feature of the corona is the fact that it is much hotter than the visible "surface" of the Sun; the photosphere is approximately 6000°C compared to the corona at over one million °C. The corona is much less dense than the photosphere, however, and so produces less light. The exact mechanism by which the corona is...

6_4d16b7c37ad5d88de63c76846431dbc72
2004-10-19 04:45:41

Chromosphere -- The chromosphere (literally, "color sphere") is a thin layer of the Sun's atmosphere just above the photosphere, roughly 10,000 kilometers deep. The chromosphere is more visually transparent than the photosphere. The most common solar feature within the chromosphere are spicules, long thin fingers of luminous gas which appear like the blades of a huge field of fiery grass growing upwards from the photosphere below. Spicules rise to the top of the chromosphere and then sink...

4_d3a853c28ff70a676427cf8e42fced4f2
2004-10-19 04:45:41

Solar Wind -- Solar wind, a stream of particles (mostly high-energy protons ~ 500 Kev) that is continually ejected from the surface of the Sun. The composition of this plasma is identical to the Sun's corona, 73% hydrogen and 25% helium with the remainder as trace impurities, and is ionized. Near Earth, the velocity of the solar wind varies from 200km/s-889km/s. The average is 450 km/s. Approximately 3000 tons of material is lost from the Sun every hour as solar wind. Since solar...

4_641fa07d2f22a90aec48fb5581337d772
2004-10-19 04:45:41

Solar Maximum -- The Sun, a roiling ball of plasma, occupies its place in space approximately 93 million miles from Earth. Though it seems simple to inhabitants of this planet -- the Sun shines, giving light and heat -- the processes occurring in the Sun are so complex that many scientists devote their careers to just one aspect of solar activity. Changes in the activity of the Sun particularly engage solar scientists. Whether fluctuations in the solar magnetic field, expulsions of...

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Word of the Day
omphalos
  • The navel or umbilicus.
  • In Greek archaeology: A central boss, as on a shield, a bowl, etc.
  • A sacred stone in the temple of Apollo at Delphi, believed by the Greeks to mark the 'navel' or exact center-point of the earth.
'Omphalos' comes from the ancient Greek.
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