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American Focus > Blog > Tech and Science > Rare Isotope of Helium Seen Blasting From a Hole in The Sun : ScienceAlert
Tech and Science

Rare Isotope of Helium Seen Blasting From a Hole in The Sun : ScienceAlert

Last updated: April 15, 2025 3:00 pm
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Rare Isotope of Helium Seen Blasting From a Hole in The Sun : ScienceAlert
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The Sun’s atmosphere recently revealed a fascinating discovery – a massive hole emitting an unusually high amount of helium-3, a rare isotope of helium. This extraordinary event occurred in late October 2023 when the Sun unleashed an unprecedented quantity of helium-3, marking a significant milestone in solar research.

A team of astronomers conducted a thorough investigation and determined that the source of this abundant helium-3 was a jet originating from the edge of a coronal hole during a rare solar eruption. The emission was primarily composed of lighter elements, with helium-3 being the predominant isotope detected.

Astrophysicist Radoslav Bučík from the Southwest Research Institute in the US explained that helium-3, a lighter isotope compared to the more common helium-4, is typically scarce in our Solar System. Solar jets have a tendency to accelerate helium-3 to high speeds due to its unique charge-to-mass ratio, leading to its concentration in the solar atmosphere.

Helium-4 is the predominant helium isotope in the Universe, accounting for a significant portion of all normal matter. In contrast, helium-3 is much less abundant and is believed to have originated from the aftermath of the Big Bang. Solar winds usually contain a minute fraction of helium-3, but solar jets can amplify its concentration significantly.

On October 24 and 25, 2023, the Solar Orbiter observatory detected a surge of helium-3 emanating from the Sun at levels 180,000 times higher than usual. This anomaly was linked to a large coronal hole on the Sun’s surface, which allowed the solar wind to escape more readily, carrying charged particles and helium-3 at high velocities.

Interestingly, the solar particle event associated with the helium-3 emission also contained elevated levels of elements such as carbon, nitrogen, silicon, and sulfur, with no significant increase in iron content. This chemical composition was rare and had only been observed in a few previous solar events.

See also  Bright Streak Appears Over US During Aurora Storm, Mystifying Skywatchers : ScienceAlert

The findings from this research have been published in The Astrophysical Journal, shedding light on the complex dynamics of the Sun’s atmosphere and the unique phenomena that occur within it. Solar Orbiter’s strategic positioning between Earth and the Sun has enabled scientists to capture and study these remarkable solar events in greater detail.

Overall, this discovery highlights the intricate processes at play in our Sun and underscores the importance of ongoing research to unravel the mysteries of our closest star.

TAGGED:blastingheliumHoleIsotopeRareScienceAlertSun
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