Solar flare alert! Sunspot eruptions spark dangerous M-class, X-class flares | Tech News

Solar flare alert! Sunspot eruptions spark dangerous M-class, X-class flares

Sunspots on the Sun's surface sparked dangerous solar flares yesterday! Could these flares have caused any damage?

By: HT TECH
| Updated on: Dec 16 2022, 11:06 IST
Do all solar activities like solar storms, CME, impact Earth? This is what NASA says
Solar flare
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)
Solar flare
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)
Solar flare
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)
Solar flare
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Solar flares are being spurted out from Sunspots on the solar surface. (SDO/NASA)

There is cause to worry as Earth has been in the firing line of dangerous solar flares recently. Solar activity has been at a high due to the Sun being in the middle of its 11-year solar cycle, a time when it reaches its peak before subsiding over the next few years. As a result, sunspot eruptions, solar storms, solar flares and more, have all plagued Earth for the past months. Just yesterday, dangerous solar flares erupted from the solar surface and sent hurling.

According to a spaceweather.com report, dangerous M-class solar flares were sent hurling yesterday, December 15, by nearly 11 numbered sunspots facing the Sun. Moreover, X-rated flares were hurled too, making it extremely dangerous. The report said,” Don't be surprised if there is a solar flare today. NOAA forecasters say there is a 75% chance of M-flares and a 15% chance of X-flares on Dec. 15th. With 11 numbered sunspot groups crossing the face of the sun, odds are good that any eruption will be geoeffective”.

What is a Solar Flare?

According to NASA, Solar flares are photon flares emitted from the Sun which travel from the flare site. They are rated on the basis of their intensity with the highest being an X-rated solar flare. Solar Flares occur due to Coronal Mass Ejections (CMEs) on the surface of the Sun which sends charged photon particles hurtling towards Earth.

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, according to NASA.

How solar flares affect our tech

Fortunately, scientists can predict solar flares before they happen, and if they occur, it still takes time for them to reach our planet. This means we can get enough time to secure our tech before the solar flare can reach us. The part that really affects tech seriously is referred to as an EMP. It contains a bunch of charged particles and when they hit something conductive, they impart that charge on that conductive object, creating current in a part of a circuit that overloads a powered line. This can fry components and even melt wires when they become overloaded.

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First Published Date: 16 Dec, 10:53 IST
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