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NASA's Voyager Probes Discover 'Wall of Fire' Beyond Solar System

11/2/2025

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Summary

Story summary

NASA's Voyager probes, launched in 1977, crossed the heliopause and found a 'wall of fire' at 30,000–50,000 kelvin.
The boundary marks the Sun's edge where solar wind meets the interstellar medium.
Interstellar object 3I/ATLAS was detected in July 2025 and aligns with the origin of the Wow! Signal from 1977.
Researchers plan to monitor 3I/ATLAS, analyze its composition, and revisit Voyager data to explore connections between these events.

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Story summary

NASA's Voyager probes, launched in 1977, crossed the heliopause and found a 'wall of fire' at 30,000–50,000 kelvin.
The boundary marks the Sun's edge where solar wind meets the interstellar medium.
Interstellar object 3I/ATLAS was detected in July 2025 and aligns with the origin of the Wow! Signal from 1977.
Researchers plan to monitor 3I/ATLAS, analyze its composition, and revisit Voyager data to explore connections between these events.