CONFIRMED: A massive black spot has expanded ten times and is directly towards Earth

Scientists have detected a rapidly growing sunspot that’s pointed directly at Earth and could launch an assault of solar energy our way in the coming days.

The sunspot, named AR3085 for the “active region” of the sun in which it appeared, was barely a blip several days ago. Now, it has grown 10 times bigger, morphing into a pair of sunspots that each measure nearly the diameter of Earth, according to This short gif shows the spot’s evolution over about two days.

Close-up image of a sunspot — a cool, dark magnetic storm on the sun. (Image credit: KIS)

A number of solar flares — large explosions of electromagnetic radiation that snap off from the sun’s surface and launch outward into space— have been detected “crackling” around the spot, according to SpaceWeather.  Fortunately, they are all currently C-class flares, which fit into the weakest of the three tiers of solar flares that government satellites track. A-, B- and C-class flares are generally too weak to have a noticeable impact on Earth. M-class flares are stronger, capable of causing radio blackouts at high latitudes, while X-class flares are the strongest and can cause widespread radio blackouts, damage satellites and knock out ground-based power grids, according to NASA.

If the spots continue to grow over the coming days, they could produce stronger flares that could barrel toward Earth, potentially endangering satellites and communication systems. For now, however, there is no imminent danger.

Sunspots are large, dark regions of strong magnetic fields that form on the sun’s surface. These regions — which typically measure as wide as planets — appear darker because they are cooler than their surroundings, according to Live Science’s sister site They form where bands of the sun’s magnetic field become tangled and taut, inhibiting the flow of hot gas from the sun’s interior and forming cooler, darker regions on the sun’s surface.

These pile-ups of magnetic energy often lead to solar flares. The more sunspots that appear on the sun at a given time, the more likely solar flares are to erupt.

The prevalence of both sunspots and solar flares are linked to the sun’s 11-year cycle of activity, which transitions between periods of high and low sunspot density every decade or so. The next solar maximum — or the period of highest sunspot activity — is predicted to hit in 2025, with as many as 115 sunspots likely to appear on the sun’s surface during its days of peak activity.

Solar activity has been ramping up over the last few years, with numerous X-class flares swooping over our planet since spring 2022 — sometimes within days of one another. The number of sunspots and solar flares will likely increase as time ticks toward the next solar maximum.


With a techniques borrowed from earthquake detection, researchers are learning to predict where sunspots will boil-up. That gives officials in charge of satellites, power grids and radio communications more warning of crippling geomagnetic storms.

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