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Latest Solar cycle Stories

Researchers Say Decreased Solar Activity Won’t Offset Global Warning
2012-01-24 14:25:46

According to a study published Monday, the slightly weaker activity of the sun expected in the coming 90 years will not be enough to significantly curb rising global temperatures. The research collaboration between the UK´s Meteorological Office and the University of Reading predicts that the energy output of the sun would decrease marginally throughout the 21 century. Unfortunately, they say, the modest 0.14 degrees Fahrenheit fall in global temperatures that this solar weakening is...

NASA: Killer Solar Flares A Physical Impossibility
2011-11-11 11:09:25

[ Watch the Video ] Given a legitimate need to protect Earth from the most intense forms of space weather — great bursts of electromagnetic energy and particles that can sometimes stream from the sun — some people worry that a gigantic "killer solar flare" could hurl enough energy to destroy Earth. Citing the accurate fact that solar activity is currently ramping up in its standard 11-year cycle, there are those who believe that 2012 could be coincident with such a flare....

SDO Spots Largest Sunspots In Years
2011-11-04 11:20:44

NASA's Solar Dynamics Observatory (SDO) spotted one of the largest new sunspots to have appeared on the surface of the sun in years. The area is nearly 25,000 miles wide, which is over three times larger than the Earth. NASA said the region has already experienced about eight solar flares, including an M-class flare on November 2. The space agency also said that X-class flares are possible, which includes the largest possible solar flares. The sun shot off a flare from this region...

The Secret Lives Of Solar Flares
2011-09-20 09:12:45

  [ View the Video ] One hundred and fifty two years ago, a man in England named Richard Carrington discovered solar flares. It happened at 11:18 AM on the cloudless morning of Thursday, September 1st, 1859. Just as usual on every sunny day, the 33-year-old solar astronomer was busy in his private observatory, projecting an image of the sun onto a screen and sketching what he saw. On that particular morning, he traced the outlines of an enormous group of sunspots. Suddenly,...

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2011-08-19 07:55:00

Researchers at Reading University said that solar storms are likely to become more disruptive to planes and spacecraft within decades. The team predicts that once the Sun shifts towards an era of lower solar activity, more hazardous radiation will reach Earth. The researchers said in Geophysical Research Letters that the Sun is currently at a grand solar maximum, which is a phase that began in the 1920s. Mike Lockwood, professor of space environment physics at Reading, said in a statement:...

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2011-07-28 08:05:00

A new study sheds light on why the Sun's outer atmosphere, or corona, is more than 20 times hotter than its surface. The research, led by the National Center for Atmospheric Research (NCAR), may bring scientists a step closer to understanding the solar cycle and the Sun's impacts on Earth. The study uses satellite observations to reveal that magnetic oscillations carrying energy from the Sun's surface into its corona are far more vigorous than previously thought. These waves are energetic...

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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...

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2011-06-14 11:25:00

Since 1611, humans have recorded the comings and goings of black spots on the sun. The number of these sunspots waxes and wanes over approximately an 11-year cycle -- more sunspots generally mean more activity and eruptions on the sun and vice versa. The number of sunspots can change from cycle to cycle, and 2008 saw the longest and weakest solar minimum since scientists have been monitoring the sun with space-based instruments. Observations have shown, however, that magnetic effects on Earth...

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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...

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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 cycle Reference Libraries

How Solar Cycles Impact Our Weather Here On Earth
2013-01-13 09:10:34

Solar cycles: what are they and why should we care about them? Solar cycles are made up of what are known as solar minimums (min) and solar maximums (max). We refer to a solar min at the time when the sun is not active with many sunspots, while a solar max is just the opposite when we see a large increase in sunspot activity. So how long do solar cycles last? Typically they run on what is known as an 11 year cycle from the max to the min and then start over again anew. As of 2012 we...

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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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