Scientists have discovered a major anomaly in the sun a hole located along our star's equator has expanded to an astonishing 800,000 kilometers in just 24 hours. It can accommodate more than 60 planets the size of Earth.
Initially thought to be transient, the sharp and significant expansion of the hole leaves scientists at once puzzled and concerned. Strong activity from large eruptions was observed in our atmosphere on December 4 and 5. The solar aperture, identified as a coronal hole, emits a huge amount of radiation that is rapidly advancing toward Earth.
Coronal holes occur when the Sun's magnetic field, responsible for its stability, undergoes an unexpected rupture.
Coronal holes are areas where the magnetic field is about 2500,<> times stronger than Earth's and much stronger than any other place on the Sun, the National Weather Service said. Due to the strong magnetic field, atmospheric pressure decreases. This leads to a decrease in temperature relative to the environment because the flow of hot gas from the interior to the surface of the Sun is hindered.
The duration of the current coronal hole remains uncertain. NASA expects an imminent change in its position, which would be a favorable outcome for our planet.
According to the U.S. National Oceanic and Atmospheric Administration (NOAA), the solar storm observed so far has not been very strong, but the orientation of the eruption toward Earth is attracting more attention.
How often the sun produces such eruptions - depends on its cycle. Such sunspot cycles have an average duration of 11.1 years, bTV notes.
Currently, solar activity is increasing. The solar wind, separated from the coronal hole in the Sun, is expected to reach Earth between Dec. 7 and Dec. 9. The observed anomaly in the Sun is probably also responsible for the auroras visible from Earth. They are usually seen from the polar regions of the planet. But for several months, many people in quite atypical areas have reported a beautiful light spectacle in the sky. In November, aurora was observed in different parts of Europe and the Balkans. More similar phenomena are expected.
Experts closely monitor solar storms because sometimes they pose significant risks. They can seriously affect navigation systems, radio devices and power lines. The satellites that orbit the Earth and provide our communication can even be completely damaged.
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