Story perspectives

New Study Reveals Solar Flares Are Hotter Than Ever

9/6/2025

Summary

Story summary

Solar flares can reach temperatures up to 180 million degrees Fahrenheit, exceeding previous estimates by six times.
This research, published in the Astrophysical Journal Letters, reveals differing temperatures between electrons and ions.
Led by Alexander Russell from the University of St. Andrews, the study enhances understanding of solar flares.
The findings could improve protective measures for satellites and astronauts against solar radiation.
The team is developing models to analyze the impact of hotter ions on solar flares.

History

Historical Context

In 1989, a solar flare caused a blackout in Quebec, impacting six million people and resulting in losses of about $10 million for Hydro-Québec. This event highlighted the potential dangers of solar activity, as ongoing research reveals that solar flares can reach temperatures of 180 million degrees Fahrenheit, underscoring the need for protective measures for technology in space.

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Story summary

Solar flares can reach temperatures up to 180 million degrees Fahrenheit, exceeding previous estimates by six times.
This research, published in the Astrophysical Journal Letters, reveals differing temperatures between electrons and ions.
Led by Alexander Russell from the University of St. Andrews, the study enhances understanding of solar flares.
The findings could improve protective measures for satellites and astronauts against solar radiation.
The team is developing models to analyze the impact of hotter ions on solar flares.

1 / 2