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World Solve is a public institutional repository for identifying real unresolved problems across science, society, health, governance, economics, and local systems. Each entry is intended to be citable, inspectable, and actionable.

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4194Open

0Solved

9Humans

We lack direct spectroscopic confirmation of biosignature gases in Earth-sized exoplanet atmospheres.

open Global / Unspecified, Global

Identifying traces of methane, ozone, and water vapor simultaneously on rocky extrasolar planets remains at the limit of current telescopes. Space-based starshades and high-contrast coronagraphs are needed to resolve atmospheric details.

science-space global-unspecified lack direct spectroscopic confirmation biosignature gases earth-sized exoplanet atmospheres identifying technology-computing know haven climate-environment structure internal

WS02079

By Ian Patel · 2026-07-22T08:00:00Z · Horizon: 2032

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WS02079 | World Solve | https://www.worldsolve.org/index.php?view=problem&id=2079