Um espelho que reflecte a vida, que passa por nós num segundo (espelho)

02
Jan 14

“Sun's magnetic field has flipped upside-down”

(NASA)

 

Magnetic reversal of the Sun

 

NASA has announced that the long-awaited reversal of the sun's magnetic poles has finally taken place.


The reversal, which takes place every 11 years, is part of the sun's natural cycle and is not believed to pose any risk to the Earth. The magnetic fields will now begin their next cycle which will culminate in another reversal at the end of the 22 year long process.


"A reversal of the sun's magnetic field is, literally, a big event," said Dr. Tony Phillips. "The domain of the sun's magnetic influence (also known as the 'heliosphere') extends billions of kilometers beyond Pluto. Changes to the field's polarity ripple all the way out to the Voyager probes, on the doorstep of interstellar space."

 

(texto: unexplained-mysteries.com – imagem: Web)

publicado por Produções Anormais - Albufeira às 01:37

07
Ago 13

The Sun's Magnetic Field is about to Flip

 

Something big is about to happen on the sun.  According to measurements from NASA-supported observatories, the sun's vast magnetic field is about to flip.

"It looks like we're 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 reversal of the sun’s global magnetic field

 

The sun's magnetic field changes polarity approximately every 11 years.  It happens at the peak of each solar cycle as the sun's inner magnetic dynamo re-organizes itself.  The coming reversal will mark the midpoint of Solar Cycle 24. Half of 'Solar Max' will be behind us, with half yet to come.

...

Magnetograms at Wilcox have been tracking the sun's polar magnetism since 1976, and they have recorded three grand reversals—with a fourth in the offing.

...

"The sun's 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 sun's magnetic field is, literally, a big event. The domain of the sun's magnetic influence (also known as the "heliosphere") extends billions of kilometers beyond Pluto. Changes to the field's polarity ripple all the way out to the Voyager probes, on the doorstep of interstellar space.

...

"The sun's 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."

 

(Dr. Tony Phillips – spaceweather.com)

publicado por Produções Anormais - Albufeira às 01:16

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