The CME was first spotted escaping the Sun on Wednesday and could deliver a "glancing blow" to us here on Earth.

According to the US Space Weather Prediction Center ( SWPC ), CMEs can reach the planet at speeds between 250 km per second and 3,000 km per second.

astronomers at have now warned yesterday's cme could reach the planet by saturday.

"It formed when a filament of magnetism lifted off from the southern hemisphere.

"the erupting filament split the sun's atmosphere wide open and a cloud of debris into space.

the website's astronomers wrote : "imagine a canyon 50,000 miles long with towering walls of red-hot plasma.

Space Weather added : "First-look data suggest it might deliver a glancing blow to Earth's magnetic field on November 28."

Sun fact sheet: Incredible facts about our star (Image: EXPRESS)

The SWPC explained : "A geomagnetic storm is a major disturbance of Earth's magnetosphere that occurs when there is a very efficient exchange of energy from the solar wind into the space environment surrounding Earth."

"These storms result from variations in the solar wind that produces major changes in the currents, plasmas, and fields in Earth's magnetosphere."

At the top of the scale, Extreme storms can cause "widespread voltage control problems" and power blackouts.

and the swpc is not currently predicting any noticeable geomagnetic unrest over the next three days.

A coronal mass ejection may strike the planet on Saturday (Image: EXPRESS)

"The glowing walls remained intact for more than six hours after the explosion."

forecasters are bracing for a cloud of hot plasma and magnetic field from the sun to reach our planet as soon as this weekend- and it has the potential to be disruptive.

Predicted is a coronal mass ejection ( CME ), a large expulsion of charged particles and magnetic field coming from the Sun which can cause the release of a solar flare.

READ MORE : Solar storm warning : Sun ejects 50,000 mile-long 'canyon of plasma' When a CME hits Earth, it can cause a geomagnetic storm that disrupts the planet's magnetosphere, radio transmissions and electrical power lines.

An image of the coronal mass ejection from NASA (Image:

Depending on the CME's strength, scientists will rank the resulting storm on a scale of "G1 Minor" to "G5 Extreme".

Minor solar storms can cause some disturbance to satellite operations and weak power grid fluctuations may occur.

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