After a "cannibal" space event, radio interference can occur at the poles of the Earth

An ongoing solar storm is hitting the planet’s polar regions, causing radio outages that could last for days, NOAA reported Tuesday. Experts say the impact was caused by a “cannibal” coronal mass ejection moving from the Sun to Earth.

Possible radio interruptions of a Polar cap suction, which means that in the ionosphere, high-frequency and very high-frequency radio waves are absorbed while low-frequency and very low-frequency radio waves are reflected at a lower altitude than usual. NOAA says the event has been underway since Monday night at approximately 9:15 p.m. ET.

The event was caused by a massive cloud of plasma ejected from the Sun, known as a coronal mass ejection (CME), as well as a powerful M5 solar flare. Those two explosions set off a small solar radiation storm that sent powerful protons toward Earth.

“PCA events can prevent the ability to communicate via HF radio transmissions around the polar regions and last for hours to days,” NOAA said Tuesday. “This event will continue on July 18th and possibly until July 19th.”

Solar storms are classified as S1 to S5, meaning they have no biological effects and will not affect satellite operations, although they may cause radio disruptions at the poles.

NOAA’s announcement came shortly after the agency M5.7 flare announced And the CME erupted from the same solar region, and a moderate wave of solar radiation with enough energy to cause radio disruption on Earth was observed by satellite.

The agency announced on Sunday that sunshine is expected during the week X-class fire probability – The strongest ones described as “bursts on the sun” – Monday and Tuesday. But there is a “cannibal” CME on the way, according to experts, like the Sun, currently in its fourth year. Cycleobserved more plasma explosions days ago.

On Friday, the sun saw a small solar flare as well as a “dark burst” on the sun It is described as “dark plasma flying away from the southern hemisphere of the Sun”. A day later, a second, more powerful flame erupted from the sun.

According to, NOAA models show that the second flare is expected to eat up the first, creating what is known as a “cannibalistic CME.” NOAA says the CMEs involved in this event will arrive on Tuesday, a Low-level geomagnetic storm It may exist on the current solar radiation wave.

By A Small geomagnetic stormof Northern lights It could be seen from Michigan and Maine, NOAA says, and there could be minor effects on power grids and satellite operations.

said Daniel Brown, associate professor of astronomy at Nottingham Trent University. News week It is the strength of the CMEs that determines how powerful a geomagnetic storm the planet will eventually see.

“The amount of material ejected, its speed, the associated magnetic fields, and how it interacts with other particles from the Sun, all add up to a dense region moving outward from the Sun to allow the Earth’s magnetic field to travel,” Brown said. The chance of a hurricane will be higher.”

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