60 miles thick · All Facts

60 miles thick
Earth's atmosphere is only about 60 miles thick — if Earth were the size of a basketball, the atmosphere would be thinner than plastic wrap.
SrcNASA

Next evidence →72,000 feetOlympus Mons on Mars rises about 72,000 feet (21.9 km) — roughly 2.5× Mount Everest — the solar system's tallest volcano.

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diamond “rain”Lab experiments show hydrocarbons can form diamond “rain” under extreme pressure — supporting models for Neptune and Uranus interiors.
72,000 feetOlympus Mons on Mars rises about 72,000 feet (21.9 km) — roughly 2.5× Mount Everest — the solar system's tallest volcano.
lakes of liquid methaneSaturn's moon Titan has stable lakes of liquid methane — the only world besides Earth known to have standing surface liquids.
1.5 inches (3.8 cm) per yearLunar laser ranging shows the Moon drifting away by about 1.5 inches (3.8 cm) per year.

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