Quantcast

Latest Solar flare Stories

9967cef266d29cdc004dcdbf6618c555
2011-07-12 10:30:00

By Dr. Tony Phillips - Science@NASA On June 7, 2011, Earth-orbiting satellites detected a flash of X-rays coming from the western edge of the solar disk. Registering only "M" (for medium) on the Richter scale of solar flares, the blast at first appeared to be a run-of-the-mill eruption--that is, until researchers looked at the movies. "We'd never seen anything like it," says Alex Young, a solar physicist at the Goddard Space Flight Center. "Half of the sun appeared to be blowing itself to...

2011-07-07 13:45:00

WHITE SPRINGS, Fla., July 7, 2011 /PRNewswire-USNewswire/ -- NASA and others are warning of oncoming solar flares that will be similar to the 1882 TRANSIT OF VENUS solar storm that burned up Western Union which was the only technology then. Experts advise oncoming flares will burn up anything solid-state such as computers, radio and TV transmitters and cell towers as they all use some form of DC 70 Volt bus systems. Eastern Canada was hit by a small flare in 1989 and it burned out power...

c038d0e2433044b8bef2441b824ccf75
2011-06-23 06:30:00

By Dr. Tony Phillips - Science@NASA In Sept. 1859, on the eve of a below-average1 solar cycle, the sun unleashed one of the most powerful storms in centuries. The underlying flare was so unusual, researchers still aren't sure how to categorize it.  The blast peppered Earth with the most energetic protons in half-a-millennium, induced electrical currents that set telegraph offices on fire, and sparked Northern Lights over Cuba and Hawaii. This week, officials have gathered at the National...

ddb6ab6c5d5b2ed96960899350104bfd
2011-06-15 12:50:00

Scientists at George Mason University discovered that a phenomenon called a giant magnetic rope is the source for solar storms. The researchers made the discovery by using images from the NASA Solar Dynamic Observatory (SDO) spacecraft. Scientists had previously been unable to prove that the magnetic rope was the cause of solar storms. However, using images taken by the Atmospheric Imaging Assembly (AIA) telescope aboard the SDO, the team was able to pinpoint an area of the sun where a...

b41647cbc03e00c75df8bece1374f32e
2011-06-10 10:17:04

ESA's Proba-2 small Sun-watcher was among the flotilla of satellites on watch as the Sun erupted spectacularly this week. After years of relative quietness, the Sun is waking up. Tuesday 7 June saw a medium-class M2.5 solar flare, associated with a proton storm, a coronal mass ejection that glanced past Earth on Thursday 9 June and an accompanying burst of radio energy. ESA's Proba-2 satellite was launched in November 2009, during the most inactive period of the solar cycle, but now the Sun...

8c01f1e55115d3d2c558f67549078cd5
2011-06-09 13:12:23

Experts said a U.N. plan to upgrade "space weather" forecasts can help the world cope with solar storms that might rack up to $2 trillion in damages if the sun repeated a giant flare of 1859. The World Meteorological Organization (WMO) said the sun is entering a more active phase due to peak in 2013 on about 11-year sunspot cycle.  Power supplies, air traffic control, communications and satellites can all be disrupted by storms. "We are increasingly being impacted by space weather,"...

ce8243862b5ad3743b9fb541e742319f
2011-06-08 06:00:00

A NASA space observatory witnessed an unusual solar flare on Tuesday that could cause interference to satellites, communications and power on Earth in the next few days, officials warn. Not since 2006 has an eruption of this magnitude been seen reports the National Weather Service. A statement by NASA's solar dynamics observatory says, "The sun unleashed an M-2 (medium-sized) solar flare with a substantial coronal mass ejection (CME) on June 7 that is visually spectacular." "The large cloud...

2011-05-11 15:18:00

WASHINGTON, May 11, 2011 /PRNewswire-USNewswire/ -- The famous Crab Nebula supernova remnant has erupted in an enormous flare five times more powerful than any flare previously seen from the object. On April 12, NASA's Fermi Gamma-ray Space Telescope first detected the outburst, which lasted six days. (Logo: http://photos.prnewswire.com/prnh/20081007/38461LOGO) The nebula is the wreckage of an exploded star that emitted light which reached Earth in the year 1054. It is located 6,500...

c176dff21a13939821a41a009f269e55
2011-05-02 09:39:03

Karen C. Fox, NASA's Goddard Space Flight Center Whether it's a giant solar flare or a beautiful green-blue aurora, just about everything interesting in space weather happens due to a phenomenon called magnetic reconnection. Reconnection occurs when magnetic field lines cross and create a burst of energy. These bursts can be so big they're measured in megatons of TNT. Several spacecraft have already sent back tantalizing data when they happened to witness a magnetic reconnection event in...

f977e62b600d75055d9c29459d050ac31
2011-04-20 10:09:54

Researchers at the University of Central Lancashire studied the largest solar flare recorded in nearly five years. The solar eruption in February was caused by five rotating sunspots working in concert, BBC News reports. Solar flares are eruptions on the surface of the sun which begin as concentrated magnetic fields and are visible as sunspots. As the magnetic fields build up, they twist and erupt, releasing vast amounts of heat, light and radiation."Twisting the Sun's magnetic field is like...


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...

More Articles (6 articles) »
Word of the Day
jument
  • A beast of burden; also, a beast in general.
'Jument' ultimately comes from the Latin 'jugum,' yoke.
Related