NASA: The Sunís Magnetic Field is about to Flip
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
Better Identification of Viking Corpses Reveals: Half of the Warriors Were Female
Shieldmaidens are not a myth! A recent archaeological discovery has shattered the stereotype of exclusively male Viking warriors sailing out to war while their long-suffering wives wait at home with baby Vikings. (We knew it! We always knew it.) Plus, some other findings are challenging that whole ‚Äúrape and pillage‚ÄĚ thing, too.
Researchers at the University of Western Australia decided ...
Off Your Knees, Germany! Ernst Zundel 1983 - 2003
For more information on the holocaust, how the war was forced upon Germany, and the REAL victims of the second world war see:
IRS Drops Attack For Six Years ‚Äď No Evidence of Jurisdiction
A big congrats to a friend I‚Äôve been working with for several years, he stood up to the predators commonly called the ‚ÄúIRS‚ÄĚ and they dropped their attack. Thanks also for providing me with the proof below.
The criminals called the ‚ÄúIRS‚ÄĚ initiated an attack claiming my friend was required to file six tax returns, or explain how he made ...
Into Eternity - Finland's 100,000 Year Massive Underground Spent Nuclear Fuel Program
Into Eternity is a documentary about a deep geological repository for nuclear waste. The concept of long-term underground storage for radioactive waste has been explored since the 1950s. The inner part of the Russian doll-like storage canisters is to be composed of copper. Hence in the case of Onkalo it is tightly linked to experiments on copper corrosion in running ...
SPLC Accuses Oath Keepers of Inciting ‚ÄúArmed Confrontation‚ÄĚ Over Sugar Pine Mine
The Southern Poverty Law Center has accused Oath Keepers of inciting an armed confrontation with BLM authorities over the Sugar Pine Mine dispute in Oregon, despite the fact that the organization has explicitly stated that it is not promoting armed confrontation with the feds.
In an article provocatively posted on the organization‚Äôs ‚ÄėHatewatch‚Äô section entitled Oath Keepers Descend Upon Oregon with ...
|More News » |