Sun spews out dark plasma from CME; Could spark G1-class Geomagnetic Storm soon | Tech News

Sun spews out dark plasma from CME; Could spark G1-class Geomagnetic Storm soon

A Geomagnetic Storm is on the cards for Earth as dark plasma has been recorded spewing out from the Solar surface.

By: HT TECH
| Updated on: Mar 13 2023, 09:30 IST
Do all solar activities like solar storms, CME, impact Earth? This is what NASA says
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1/5 Sun is a source of energy and a lot of activities keep on happening on the fireball. But can Earth be impacted by solar activities? Before we tell you that, it is important to know what solar activity is? According to NASA, solar flares, coronal mass ejections, high-speed solar wind, and solar energetic particles are all forms of solar activity. All solar activity is driven by the solar magnetic field. (NASA)
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2/5 Solar flares impact Earth only when they occur on the side of the sun facing Earth. Because flares are made of photons, they travel out directly from the flare site, so if we can see the flare, we can be impacted by it. (Pixabay)
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3/5 Coronal mass ejections, also called CMEs, are large clouds of plasma and magnetic field that erupt from the sun. These clouds can erupt in any direction, and then continue on in that direction, plowing right through the solar wind. Only when the cloud is aimed at Earth will the CME hit Earth and therefore cause impacts. (NASA)
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4/5 High-speed solar wind streams come from areas on the sun known as coronal holes. These holes can form anywhere on the sun and usually, only when they are closer to the solar equator, do the winds they produce impact Earth. (NASA)
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5/5 Solar energetic particles are high-energy charged particles, primarily thought to be released by shocks formed at the front of coronal mass ejections and solar flares. When a CME cloud plows through the solar wind, high velocity solar energetic particles can be produced and because they are charged, they must follow the magnetic field lines that pervade the space between the Sun and the Earth. Therefore, only the charged particles that follow magnetic field lines that intersect the Earth will result in impacts. (NASA)
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Geomagnetic Storm, caused by the dark plasma, could hit Earth on March 15. (REUTERS)

CMEs are massive plasma clouds carrying photons that are ejected from the Sun. CME occurs extremely frequently during the 11-year solar cycle and is at peak during the middle of the cycle. Earth therefore, is being bombarded at the moment with a number of CMEs sparking problems for humanity. And now, NASA and ESA's Solar and Heliospheric Observatory have recently observed dangerous dark plasma spewing out from the southwestern area of the solar surface.

Risk of a Geomagnetic Storm

According to a report by spaceweather.com, this dark plasma was seen flying away from the surface of the Sun by the SOHO spacecraft. Dark Plasma is formed at the core of a CME and is cooler and less luminous than the Sun. NOAA experts have modeled this scenario and predicted that it will just graze Earth's magnetic field on March 15. This could also spark G1-class Geomagnetic Storm, according to the report.

According to NASA, when a CME cloud plows through the solar wind, high velocity solar energetic particles can be produced and because they are charged, they must follow the magnetic field lines that pervade the space between the Sun and the Earth.

The report stated, “This relatively dark material formed the core of a CME, which was seen flying away from the sun by the Solar and Heliospheric Observatory (SOHO). NOAA analysts have modeled the CME and determined that it could graze Earth's magnetic field on March 15th, producing a G1-class geomagnetic storm.”

Factors driving solar activity

The Sun entered solar cycle 25 in 2019 and it is expected that it will hit its peak in July 2025. And this is the main reason why the Sun has suddenly become so violent. If the Earth is hit with the most dangerous G5-class solar storm, it can not only damage satellites and disrupt wireless communications such as internet services, mobile network and GPS, it can also cause power grid failures and even disrupt medical electronics such as pacemakers or ventilators on Earth.

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First Published Date: 13 Mar, 09:29 IST
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