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Earth Avoids Sun's Red Giant, Becomes Uninhabitable in 1 Billion

7/10/2026

39 6 Full Breakdown

Summary

Story summary

Mats Esseldeurs of KU Leuven led a study on Earth’s long-term fate.
The Sun will exhaust hydrogen in 5 billion years, become a red giant, and exert weaker tidal pull on Earth.
L2 Pup observations show mass loss that can push Earth outward enough to avoid engulfment, while Mercury and Venus will be swallowed.
The study predicts Earth will become too hot for life in about 1 billion years, before the red-giant phase.

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Story summary

Mats Esseldeurs of KU Leuven led a study on Earth’s long-term fate.
The Sun will exhaust hydrogen in 5 billion years, become a red giant, and exert weaker tidal pull on Earth.
L2 Pup observations show mass loss that can push Earth outward enough to avoid engulfment, while Mercury and Venus will be swallowed.
The study predicts Earth will become too hot for life in about 1 billion years, before the red-giant phase.