Unverified50% confidenceFactExact time

The heliopause is approximately 120 astronomical units (about 18 billion kilometers) from the Sun, and is the boundary region where the pressure of the solar wind and the interstellar medium reach equilibrium.

1

Sources

50%

Confidence

Long-term

Relevance

9/5/2026

First Seen

Sources

AI Plans an Interstellar Voyage: An 80,000-Year Expedition to Alpha Centauri

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