A 2025 study tested whether impacts could keep Titan’s methane skies alive and found that a 20-kilometre object released up to 1% of the atmosphere’s methane directly, while even favourable impact histories extended its lifetime by no more than 3%, leaving the source of its rivers and rain unresolved

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Even cosmic collisions can't explain how Titan keeps replenishing the methane that fuels its alien weather—leaving scientists hunting for a deeper mystery. The post A 2025 study tested whether impacts could keep Titan’s methane skies alive and found that a 20-kilometre object released up to 1% of the atmosphere’s methane directly, while even favourable impact histories extended its lifetime by no more than 3%, leaving the source of its rivers and rain unresolved appeared first on Space Daily .