Optics & Imaging · Projected milestone
Direct spectrum of a habitable-zone Earth-size planet
50% by 2065 · including earlier years
The year is an editorial timing estimate. The percentage applies to occurrence by the stated deadline. These estimates are not calibrated odds.
A space telescope directly separates an approximately 0.8–1.5 Earth-radius planet in its star’s modeled habitable zone and publishes an atmospheric spectrum with at least one molecular feature at a declared statistically significant detection threshold.
Explore this milestone on the interactive mapWhat the forecast means
Milestone stage: scientific observation
Direct imaging of an Earth-size habitable-zone planet with the specified atmosphere spectrum remains unresolved
Timing window: 2042–2062. An editorial range, not a statistical confidence interval.
Completion criteria: A space telescope directly separates an approximately 0.8–1.5 Earth-radius planet in its star’s modeled habitable zone and publishes an atmospheric spectrum with at least one molecular feature at a declared statistically significant detection threshold. A forecast, policy target or prototype outside this definition does not resolve it.
This page describes a forecast, rather than an achieved result. Read the methodology and assumptions.
Built on
Led to
Sources & evidence
- NASA exoplanet missions
NASA’s missions overview describes the goals of exoplanet-observation programs, including future direct study of potentially habitable planets. It does not establish a completed qualifying Earth-size planet spectrum.
- NASA selects HWO technology proposals 2026-01-05
NASA’s January 2026 announcement selects technology proposals supporting the Habitable Worlds Observatory concept. Technology selection is a development step, not a launch or observation result.
Original node: Claude. Definition and evidence revision: Astra. Cited researchers and institutions retain achievement credit.
Record reviewed 2026-10-18