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Latest Solar flare Stories

Doppler Techniques Could Help Predict Solar Storms
2012-07-04 04:12:19

Lee Rannals for redOrbit.com - Your Universe Online Scientists are using Doppler techniques that may be able to take predicting space weather to a new level and understanding. An international team of researchers have combined Doppler techniques with images and data from a space-based telescope to observe loops of 1,800,000-degree Fahrenheit plasma flowing up from the sun's surface at more than 12 miles per second. These loops arch over the sun, and may be the first signs of trouble...

Images Of Extreme Solar Activity Provide Origins Of Powerful Space Storms
2012-07-02 09:58:45

Lawrence LeBlond for redOrbit.com - Your Universe Online An international team of scientists have for the first time captured and identified images of an upward surge of the Sun´s gases into quiescent coronal loops, a discovery that provides one more step in the understanding of the origins of extreme storms in outer space, which are known to wreak havoc on satellite systems and power grids here on Earth. University of Cambridge researchers worked with colleagues from the India and...

Incoming Coronal Mass Ejection Coming On June 16
2012-06-15 13:39:44

[ Watch the Video ] Lee Rannals for redOrbit.com The sun is a ferocious, hot mess, and this week it showed off through a coronal mass ejection just how messy it can get. An active region on the sun fired off two M-class flares and two coronal mass ejections (CMEs) this week. NASA said the first flare lasted for three hours, and peaked on June 13 at 9:17 a.m. EDT.  The CME associated with the flare traveled up at approximately 375 miles per second. The second flare peaked...

135195670
2012-06-12 07:47:27

Lee Rannals for redOrbit.com NASA said that its Fermi Gamma-ray Space Telescope detected the highest-energy light ever associated with an eruption on the sun on March 7. The latest discovery, according to the space agency, is echoing in Fermi's new role as a solar observatory, which is a tool that is being used to understand solar outbursts. The March 7 flare was a class X5.4, and is the strongest eruption so far observed by Fermi's Large Area Telescope (LAT). "For most of Fermi's...

Venus Transit Will Help RHESSI Improve Sun Measurements
2012-06-05 08:42:08

The RHESSI (Ramaty High Energy Solar Spectroscopic Imager) satellite focuses on the highest energy x-rays and gamma-rays produced by the sun, helping to observe solar flares of all shapes and sizes. The satellite is pointed toward the sun, and constantly in rotation, which provides a serendipitous bit of side research: by monitoring the limb of the sun on its four second rotation cycle, RHESSI´s Solar Aspect System (SAS) has produced ten years worth of precise measurements of the sun's...

Process Linked To Northern Lights Observed
2012-06-04 04:38:00

A University of Iowa researcher wants you to visualize a plate of spaghetti when you think of the northern lights. That´s because Jack Scudder, UI professor of physics and astronomy, and his colleagues have reached a milestone in describing how the northern lights work by way of a process called “magnetic reconnection.” The details are contained in a paper published in the June 5 issue of the journal Physical Review Letters; however, the process is best imagined as...

pamela_sm
2012-06-03 07:50:39

When the sun launched a moderate, or M-class, solar flare May 17, 2012, it was still one of the largest eruptions seen since late January when our star began to rouse from an anomalously long quiet period. But the event was not just an additional solar wake-up call; it produced something that has the solar physics community puzzled and scientists from the University of New Hampshire poised to analyze a singular dataset gathered during the event by a European satellite called PAMELA - short...

Some Sun-like Stars Put Off Superflares
2012-05-17 13:32:04

New research shows that other sun-like stars in the universe can send off flares much larger than those seen on our sun. Solar flares are the result of broken magnetic-field loops as they pass through sunspots. As these loops become twisted and contorted, the flares occur, sending enormous amounts of charged particles, energy and radiation outward. So far, the largest solar flare ever measured on our sun happened on September 1, 1859, by British astronomer Richard Carrington. He simply...

Medium-Class Solar Flare Erupts On Tuesday
2012-05-08 10:14:19

Lee Rannals for RedOrbit.com [ Watch the Video ] A medium-class solar flare erupted from the Sun on Tuesday, prompting scientists to keep their eye on the region for a space weather impact on Earth. NASA said its Solar Dynamics Observatory (http://www.nasa.gov/mission_pages/sdo/main/index.html) caught the Sun pumping out an M1.4-class solar flare on the large active region 1476. According to the space agency, the images seen by SDO unveil temperatures of around 10 million degrees...


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
omadhaun
  • A fool; a simpleton: a term of abuse common in Ireland and to a less extent in the Gaelic-speaking parts of Scotland.
This word is partly Irish in origin.