Astronomy & Space Science · Projected milestone
Life beyond Earth confirmed
Estimated year~2080
20% by 2085 · 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.
Evidence from Mars, the icy moons or exoplanets settles that we are not alone.
Explore this milestone on the interactive mapWhat the forecast means
Milestone stage: milestone (legacy definition)
Completion criteria: Legacy milestone: refine the observable threshold before resolving.
This page describes a forecast, rather than an achieved result. Read the methodology and assumptions.
Built on
- Mars roversRecorded · 1997enables
- Europa ocean exploredForecast · ~2031enables
- Mars samples returned to EarthForecast · ~2031enables
- Dragonfly flies on TitanForecast · ~2034enables
- Biosignature detectedForecast · ~2042enables
- Direct spectrum of a habitable-zone Earth-size planetForecast · ~2050enables
- Enceladus plume landerForecast · ~2056enables
Led to
Sources & evidence
No individual source links are recorded for this milestone. Source coverage and review status vary across the atlas.
Dataset updated 2026-10-18. This individual record has not been separately re-reviewed.