NASA: The Sunís Magnetic Field is about to Flip
2013 08 06
Dr. Tony Phillips | NASA Science News
Something big is about to happen on the sun. According to measurements from NASA-supported observatories, the sunís vast magnetic field is about to flip.
"It looks like weíre no more than 3 to 4 months away from a complete field reversal," says solar physicist Todd Hoeksema of Stanford University. "This change will have ripple effects throughout the solar system."
The sunís magnetic field changes polarity approximately every 11 years. It happens at the peak of each solar cycle as the sunís inner magnetic dynamo re-organizes itself. The coming reversal will mark the midpoint of Solar Cycle 24. Half of íSolar Maxí will be behind us, with half yet to come.
Hoeksema is the director of Stanfordís Wilcox Solar Observatory, one of the few observatories in the world that monitor the sunís polar magnetic fields. The poles are a herald of change. Just as Earth scientists watch our planetís polar regions for signs of climate change, solar physicists do the same thing for the sun. Magnetograms at Wilcox have been tracking the sunís polar magnetism since 1976, and they have recorded three grand reversalsówith a fourth in the offing.
Solar physicist Phil Scherrer, also at Stanford, describes what happens: "The sunís polar magnetic fields weaken, go to zero, and then emerge again with the opposite polarity. This is a regular part of the solar cycle."
A reversal of the sunís magnetic field is, literally, a big event. The domain of the sunís magnetic influence (also known as the "heliosphere") extends billions of kilometers beyond Pluto. Changes to the fieldís polarity ripple all the way out to the Voyager probes, on the doorstep of interstellar space.
When solar physicists talk about solar field reversals, their conversation often centers on the "current sheet." The current sheet is a sprawling surface jutting outward from the sunís equator where the sunís slowly-rotating magnetic field induces an electrical current. The current itself is small, only one ten-billionth of an amp per square meter (0.0000000001 amps/m2), but thereís a lot of it: the amperage flows through a region 10,000 km thick and billions of kilometers wide. Electrically speaking, the entire heliosphere is organized around this enormous sheet.
During field reversals, the current sheet becomes very wavy. Scherrer likens the undulations to the seams on a baseball. As Earth orbits the sun, we dip in and out of the current sheet. Transitions from one side to another can stir up stormy space weather around our planet.
Cosmic rays are also affected. These are high-energy particles accelerated to nearly light speed by supernova explosions and other violent events in the galaxy. Cosmic rays are a danger to astronauts and space probes, and some researchers say they might affect the cloudiness and climate of Earth. The current sheet acts as a barrier to cosmic rays, deflecting them as they attempt to penetrate the inner solar system. A wavy, crinkly sheet acts as a better shield against these energetic particles from deep space.
As the field reversal approaches, data from Wilcox show that the sunís two hemispheres are out of synch.
"The sunís north pole has already changed sign, while the south pole is racing to catch up," says Scherrer. "Soon, however, both poles will be reversed, and the second half of Solar Max will be underway."
When that happens, Hoeksema and Scherrer will share the news with their colleagues and the public.
Article from: nasa.gov
Tune into Red Ice Radio:
Jay Weidner, Barbara Hand Clow & Lawrence E. Joseph - 2012 Roundtable Special
Will Hart - Solar Flare Apocalypse, Accelerated Natural Disasters & Evolution
Paul A. LaViolette - Earth Under Fire, Galactic Superwaves & Subquantum Kinetics
Micheal Sunanda - Extreme Weather, Global Warming & Permaculture
Robert Schoch - The Mystery of the Sphinx, Forgotten Civilization & Catastrophic Solar Outbursts
Matthew Stein - Hour 1 - When Technology Fails & Six Civilization Busters
Matthew Stein - Hour 2 - 400 Chernobyls, Super Solar Storms & EMPs
David Talbott - Lightning Scarred Planet Mars & The Electric Sun
Randall Carlson - Hour 1 - Cycles of Catastrophe & Cosmic Patterns
Will Hart - Solar Flare Apocalypse & Comets
David Talbott - Hour 1 - Symbols of an Alien Sky
Troy McLachlan & Theodore Holden - Hour 1 - Cosmos in Collision: Antique Solar System, Neanderthals & Modern Man
A storm is coming: Sunís poles are set to FLIP and it could lead to bad weather and radio disruption
Reverse! Sunís magnetic field on the brink of 180-degree flip
Magnetic Portals Connect Sun and Earth
Mystery of Moonís Magnetic Field Deepens
New energy pattern observed at National High Magnetic Field Laboratory
Bioelectromagnetics: Bees & Flowers Communicate Using Electrical Fields, Scientists Find
Earthís Magnetic Field Made Quick Flip- Flop
Magnetic polar shift on the sun underway
What If Earthís Magnetic Poles Flip?
EMP Attack and Solar Storms, Part II: Cascading Failures and Nuclear Meltdown
2013ís solar maximum could be weakest since the dawn of the space age
Huge X-class Solar Flares Keep Erupting from Sun: 4 in 48 Hours!
The Electric Sun (Magnetic Field, Schuman Resonance, Pole Shift)
WAL THORNHILL: From Cosmic Currents to the Electric Sun
Earthís Inconstant Magnetic Field
Latest News from our Front Page
The Aeon of Horus is Ending and the Elites are Nervous as their Icons are Dying
2014 04 18
I predict there is going to be a huge resurgence of interest in European indigenous spiritual traditions from Norse to Celtic/Gaelic to Slavic and so on. Millions of Europeans are going to realise that we are the victims of Christianity and New Age garbage. Their bastardised Kabbalah, the psychic force used by Crowley and the elites to cement his Aeon ...
Easter - Christian or Pagan?
2014 04 18
Contrary to popular belief, Easter does not represent the "historical" crucifixion and resurrection of Jesus Christ. In reality, the gospel tale reflects the annual "crossification" of the sun through the vernal equinox (Spring), at which time the sun is "resurrected," as the day begins to become longer than the night.
Rather than being a "Christian" holiday, Easter celebrations date back ...
Man-Made Blood Might Be Used in Transfusions by 2016
2014 04 18
Researchers in the U.K. have created the first man-made red blood cells of high enough quality to be introduced into the human body
The premise of the HBO show and book series True Blood revolves around a technological breakthrough: scientists figure out how to synthesize artificial human blood, which, as an ample new source of non-human food, allows vampires to "come ...
The Trials of the Cherokee Were Reflected In Their Skulls
2014 04 18
Researchers from North Carolina State University and the University of Tennessee have found that environmental stressors Ė from the Trail of Tears to the Civil War Ė led to significant changes in the shape of skulls in the eastern and western bands of the Cherokee people.
The findings highlight the role of environmental factors in shaping our physical characteristics.
Our Fears May Be Shaped by Ancestral Trauma
2014 04 18
Last December, an unsettling Nature Neuroscience study found that mice who were taught to associate the smell of cherry blossoms with pain produced offspring who feared the smell of cherry blossoms, even if they had never been exposed to it before. We knew that the process was epigeneticóthat it was not hard-wired in the permanent genetic structure of the mouseóbut ...
|More News Ľ |