The sun erupted with an X1.7 class solar flare on May 12th, 2013. This is a blend of two images of the flare from NASA’s Solar Dynamics Observatory. One image shows the light in the 171-angstrom wavelength and the other show the 131 angstroms.
Are science fiction literature authors correct when they write about solar flares causing Earth’s communications to fail and causing catastrophes worldwide or is this simply a convenient plot device? The year 2013 has seen the most solar flares since 2003 because the Sun’s magnetic field cycle is reversing polarization, as it does every 11 years. This reversal causes larger and more frequent solar flares, which explains why this year has seen a large number of these impressive solar weather occurrences in many years. National Aeronautics and Space Administration (NASA) officials say “the sun’s normal 11-year activity cycle is ramping up toward solar maximum, which is expected in late 2013” (NASA News, 2013, found below).
Early in October the Earth was treated to a wonderful display of Northern Lights, illuminating the sky with brilliant dancing colors throughout the Northern United States and Canada. A solar flare directed at the Earth sent a larger than average stream of magnetized radiation at the Earth, which reacted with the Earth’s own gravity and magnetic field, creating Northern Lights. This particular flare was a class M, which was not strong enough to disrupt any satellites or space stations orbiting the Earth but is still considered impressive by NASA’s standards.
The question remains: how will these solar flares affect technology and are they dangerous to the Earth? Below are some informative links explaining what solar flares are, how they affect technology, and how they are studied.
What are solar flares and why are they important:
Solar Flare Theory Educational Web Pages (find it on the ipl2)
NASA’s Goddard Space Flight Center in the Heliophysics Science Division offers a detailed look at solar flares, explaining what a solar flare is, why it’s important to study solar flares, and what impact solar flares have. Additionally, this site reviews current research projects in the field of solar flares, such as the RHESSI Spacecraft.
NASA News (find it on the ipl2)
On June 8th, 2013, NASA announced that a class M solar flare had occurred on June 7th. NASA explained effects such as moderate radio blackout are common with class M solar flares. NASA officials also stated that increased solar weather activities, like flares, were likely to occur more frequently in 2013, as the magnetic field was likely to reach “solar maximum.” The United States Space Weather Prediction Center with the National Oceanic Atmospheric Association predicts that the solar flare activities are likely to increase late in 2013.
The Sun Also Flips: 11-Year Solar Cycle Wimpy, but Peaking (New!)
University of Wisconsin-Madison’s Terry Devitt provides an in depth explanation of the solar flare and of solar maxes, explaining that the Sun’s magnetic field reverses direction every 11 years, causing sunspots, solar flares, auroras, and geomagnetic storms. Devitt also discusses the effects of superflares and their potential global threat to the Earth.
The not-so Northern Lights: Solar Flare Slams into Earth to Display Majestic Aurora as Far South as Kansas, Maine and Donegal (New!)
The Daily Mail Online explains how a powerful solar flare brought the Northern Lights as far south as Kansas, Main, and Donegal (a town in Ireland). The site explains the phenomena and includes many lovely photos from Paul Cyr illustrating an Amish family experiencing the Lights for the first time. The Daily explains what a solar flare is, why it occurs, and that in December of 2013 this solar flare cycle will reach its peak, undoubtedly creating more Northern Lights.
How do they affect technology on the Earth:
The Effects of Solar Flares on Technology (New!)
eHow explains the Effects of Solar Flares on Technology in a manner that is clear and easy to understand. eHow explains the Sun’s 11 year magnetic energy cycle and its effect on the rate of solar flare as it changes. The site additionally outlines the effect on the power grids, GPS technology, and mobile devices.
Could an Extremely Powerful Solar Flare Destroy all the Electronics on Earth? (find it on the ipl2)
In Jonathan Strickland’s article with HowStuffWorks.com, he explains the nature of the sun, solar flares, and the potential for damage for our planet when a solar flare happens. Strickland explains that the majority of flares are absorbed in our atmosphere, creating Northern Lights and leaving the majority of people unharmed, but for people in space or at high altitudes skin cancer or irritation is a risk depending of the flare’s classification; additionally Strickland explains the vulnerability of satellites and electronics. The last super-storm from the Sun happened in 1859, when a flare so powerful occurred that Cubans saw the Northern Light. Strickland explains that if a similar flare happened today, it would take months to repair the damage.
Solar Flare Warning Issued by NASA (New!)
On August 21st NASA issued a Solar Flare Warning as a storm hurtled toward the Earth at 3 million mph, interrupting some satellites used for GPSs and airline communications. The article from Inquisitor explains that 3 million mph is an average speed for solar storms. Additionally the Northern Lights is an extraordinary side effect of the these storms. When the solar radiation from the the flare hits the Earth’s magnetic field, the radiation breaks up in the atmosphere creating the Northern Lights in the sky, which are brightest at the poles of the Earth where the magnetic field is the strongest.
Solar Effects (find it on the ipl2)
The National Oceanic Atmospheric Association (NOAA) Space Weather Predictions Centers (SWPC) offers detailed descriptions of solar effects, including solar cycles, solar-terrestrial effects (the solar weather’s effects on earth), and a look at SWPC’s other solar weather operations. The table provided on this site is particularly helpful in laying out the specific effects that solar weather has on the Earth.
How do we study the sun:
Scientists have High Hopes for Japan’s Solar-B Mission Which has been Launched from the Uchinoura Space Port (find it on the ipl2)
Here the BBC’s Jonathan Amos discusses Japan’s new mission to study solar explosions. In September of 2006, Japan sent the spacecraft Solar-B into space carrying a probe, which will find out more about the Sun’s magnetic fields that cause solar flares when their 11-year cycle changes, flinging radiation into space. Amos explains that the probe will act as magnet to study the sun, giving scientists the hope that with finer detail they will be able to predict solar flares more accurate and avoid disaster in the future.
The Classification of X-ray Solar Flares or “Solar Flare Alphabet Soup” (find it on the ipl2)
SpaceWeather.com gives a unique look into the science of classifying solar flares. By analyzing strength of wattage, or the measurement of light admitted from the Sun, in a measurement called an Angstrom, scientists are able to determine the classifications; for example 10^-5.5 watts measures up to a class M solar event. The site then explains how class X could lead to lasting radio blackout and radiation, class M would cause radiation in the Earth’s magnetic field and radio blackouts around the pole, and class C are unnoticed by the public.
Strongest Solar Flare in Months Unleashed by Sun (find it on the ipl2)
NBC’s Denise Chow offers a clear explanation of the class system for solar flares in a report of the event on October 9th, 2013, when at 9:48pm EDT one of the strongest solar flare in two months occurred. Chow illustrates the role of Earth’s magnetic field and how the flare could disrupt communications on Earth.
Our Sun (New!)
This children’s site illustrates the fundamentals of solar astronomy, highlighting key points like x-ray classification of solar flares, convection, thermonuclear fusion, and sun spots and winds. This site is particularly helpful because it offers HD video from NASA and the Kids Know It Network.
NASA Canyon of Fire on the Sun (find it on the ipl2)
Nasa’s YouTube Channel offers look at an eruption of solar material that occurred in late September. The video illustrates how the Sun is actually made out of plasma, and as magnetic fields change cycles, eruptions, like solar flares, can happen. This video demonstrates that by analyzing the eruption at different wavelengths, as demonstrated by the multiple colors, scientists are able to study the magnetic field around the Sun.