Scary Geomagnetic storm set to hit Earth tomorrow due to this dangerous CME | Tech News

Scary Geomagnetic storm set to hit Earth tomorrow due to this dangerous CME

A recent CME eruption on the surface of the Sun is all set to spark a Geomagnetic storm on Earth tomorrow, December 27. Here’s what could happen.

By: HT TECH
| Updated on: Dec 26 2022, 13:30 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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Know more about the geomagnetic storm danger faced by Earth. (NASA)

Solar activity has been at a high due to the Sun being in the middle of its solar cycle during which it reaches its peak volatility levels. As a result, sunspot eruptions, solar storms, solar flares and more, are all plaguing Earth. Although this solar activity might seem harmless due to the distance of the Sun from our planet, they can cause major damage. Now, scientists have observed harmful Coronal Mass Ejections (CMEs) erupting from the solar surface, which could result in a geomagnetic storm hitting the planet as soon as tomorrow!

NOAA forecasters have revealed that Earth is at risk of a G-1 class geomagnetic storm which is expected to impact Earth tomorrow, December 27. This is due to a CME which was hurled towards the Earth on Christmas Eve. “NOAA forecasters say that G1-class geomagnetic storms are likely on Dec. 27th when a CME is expected to hit Earth's magnetic field. The CME left the sun on Christmas Eve, propelled by the explosion of a magnetic filament”, the spaceweather.com reports said.

Formation of Solar Storms

Solar storms occur due to CMEs that are set off on the surface of the Sun. As per the K-index, which measures the magnetic field around the Earth, solar storms are divided into 5 classes from G-1 to G-5. The G-1 is the lowest impact solar G5 is given to the most severe solar storms.

As the particles during the solar storm reach Earth, they interact with Earth's magnetic field and spark Geomagnetic storms.

Effects of Geomagnetic Storm

When solar particles hit Earth, radio communications and the power grid are affected when they hits the planet's magnetic field. This can cause power and radio blackouts for several hours or even days. However, electricity grid problems occur only if the solar flare is extremely strong.

Beautiful auroras form as a result of the CME from the Sun too. These are the stunning streaks of green light across the sky known as Northern Lights or Aurora Borealis.

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First Published Date: 26 Dec, 13:08 IST
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