Does the Sun experience a superflare every century? And what effect does it have on Earth?

Arab Weather - An international team of scientists, led by researchers from the Max Planck Institute for Solar System Research in Germany, has shown that stars similar to the Sun release superflares at a rate of about once every century. These flares are known as massive explosions of radiation and charged particles, and release energy exceeding a trillion hydrogen bombs.

The study, published in the journal Science, was based on an analysis of data from NASA's Kepler telescope, which observed 56,450 sun-like stars between 2009 and 2013. The scientists identified 2,889 superflares on 2,527 of these stars.

Importance of the research: Understanding solar behavior across the stars

“Monitoring thousands of Sun-like stars over short periods of time helps us estimate the frequency of superflares,” said Prof. Dr. Sami Solanki, Director of the Max Planck Institute for Astrophysics. “While these flares were previously thought to be rare, occurring every thousand years, the study confirms that they are much more common than previously thought.”

How do superflares occur?

Superflares are caused by the release of energy stored in the magnetic field lines of stars. When these lines tangle and break, they release enormous amounts of energy in the form of intense radiation and charged particles. These flares are 10,000 times more powerful than the regular solar flares we see from our Sun.

Warning of the possibility of super solar flares

The year 2024 saw significant fluctuations in solar activity, with some powerful solar storms affecting Earth, some of which caused aurorae to appear even in low latitude locations such as Algeria. However, the current study raises questions about the possibility of a superflare in the future.

Historical examples: Effects of strong solar flares

Carrington Event (1859): A powerful solar storm caused a global aurora, disrupting telegraph systems in Europe and North America. However, the energy of this event was a fraction of that of a superflare.

Prehistoric evidence: Traces of superflares have been detected in tree trunks and ice cores dating back thousands of years.

Effects of superflares on Earth

1. Ozone depletion: Radiation can destroy part of the ozone layer, increasing the Earth's exposure to harmful ultraviolet rays.
2. Climate disruption: Ionizing particles in the upper atmosphere cause changes in the climate balance.
3. Geomagnetic storms : Massive energy disrupts electrical grids and causes widespread power outages.
4. Satellite damage: Intense radiation could disrupt communication and navigation systems, leading to global crises.
5. Social and economic implications: The resulting damage can lead to panic and political instability.

Although the study does not pinpoint when the next superflare will occur, it highlights the importance of developing advanced technologies to monitor solar flares and deal with their effects. Such solar events, although rare, are a natural part of the Sun’s behavior, making preparation for them an urgent necessity to maintain the stability of Earth and its vital systems.

See also:

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