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Two Comets Set for Spectacular 2025 Earth Viewing

10/14/2025

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Summary

Story summary

Comet C/2025 A6 Lemmon will be brighter and reach its closest approach to Earth on October 21, 2025, at 56 million miles, near the Orionid meteor shower and new moon.
Comet C/2025 R2 SWAN will be visible in the southwest after sunset.
Both comets require binoculars for observation and are expected to brighten as they approach Earth, increasing visibility.

History

Historical Context

Halley's Comet, first predicted by Edmond Halley in 1705, made its closest approach to Earth on March 14, 1986. The European Space Agency's Giotto spacecraft captured detailed images of its nucleus, revealing a 15-kilometer-long, dark body. This event, part of the Halley Armada, reignited public interest in astronomy and paved the way for future comet explorations, including upcoming comets C/2025 A6 Lemmon and C/2025 R2 SWAN.

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Story summary

Comet C/2025 A6 Lemmon will be brighter and reach its closest approach to Earth on October 21, 2025, at 56 million miles, near the Orionid meteor shower and new moon.
Comet C/2025 R2 SWAN will be visible in the southwest after sunset.
Both comets require binoculars for observation and are expected to brighten as they approach Earth, increasing visibility.

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