Sun enters 25th solar cycle: Violent eruptions can happen anytime

A new 'solar cycle' has begun NASA says

New ‘solar cycle’ has begun, Nasa says

Even during the last, relatively weak solar cycle, drama on the Sun triggered occasional weirdness on Earth like radio blackouts, disruptions in air traffic control, power outages-and even handsome aurorae seen as far south as Alabama.

The panel's second co-chair, Douglas A. of the Space Weather Forecast Center in Boulder, Colo.

The middle of the solar cycle is the solar maximum, or when the Sun has the most sunspots.

Counting of sunspots goes back centuries, and the list of numbered solar cycles tracked by scientists starts with one that began in 1755 and ended in 1766. In 2012 there was an outburst so strong that had it hit us things would be vastly different today, and not in a good way. For the last 9000 years, it is continuously getting weaker.

Solar cycles are measured by changes in sunspot activity, with a new cycle starting when the previous one reaches its minimum and activity starts to rebound.

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While the cycle of low and high happens over 11 years, it is more precisely a reflection of a larger 22-year cycle specified by a total reverse in the Sun's polarity. A NASA scientist said that the sun has started its new cycle.

The best we can determine for our own Sun's patterns has to do with changes in its magnetic fields, which are in turn driven by complex currents of flowing plasma deep within.

These include, Solar-Terrestrial Observer for the Response of the Magnetosphere (STORM); HelioSwarm: The Nature of Turbulence in Space Plasmas; Multi-slit Solar Explorer (MUSE); Auroral Reconstruction CubeSwarm (ARCS) and Solaris: Revealing the Mysteries of the Sun's Poles. As the solar cycle winds down, the Sun becomes less active.

Solar activity can affect satellite electronics and limit their lifetime.

Sunspots appear darker because they're cooler than their surroundings, they are the areas of the Sun where huge explosions of light and energy take place.

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We predict the decline in solar cycle amplitude, seen from cycles 21 through 24, has come to an end.

"There is no bad weather, just bad preparation", Jacob Bleacher, chief scientist for NASA's Human Exploration and Operations Mission Directorate at the agency's Headquarters, said at the press briefing.

Lika Guhathakurta, photo voltaic scientist on the Heliophysics Division at NASA Headquarters in Washington said that as Earth emerges from photo voltaic minimal and approaches Cycle 25's most, you will need to do not forget that photo voltaic exercise by no means stops.

Meanwhile, scientists are now working on predictive models so they can one day forecast space weather much like meteorologists forecast weather on Earth.

This will help scientists to provide warnings about potential space weather events that could play havoc with the electrical power grid as well as navigation and timing systems like the Global Positioning System (GPS). "Mid-2025 is when we expect this solar cycle to peak", says Petrie. The studies conducted so far have shown a reduction in lighting up to five times.

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"Because a full solar magnetic cycle takes about 22 years, including magnetic polarity reversal every 11-year sunspot cycle, the continuity of synoptic observations of the Sun through programs like NISP are vital to our understanding of the long-term variations of our closest star", says David Boboltz, NSF's Astronomy Program Director for the NSO.

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