Worlds beyond Earth that may host oceans, atmosphere, chemistry — or life itself.
Scientists estimate there could be billions of potentially habitable worlds in the universe. Some orbit nearby stars, others float alone in darkness, and a few may be more Earth-like than Earth itself.
These aren’t confirmed living worlds — but they are our best candidates.
The closest potentially habitable exoplanet — only 4.24 light-years away.
Pros: Right temperature range, similar mass to Earth.
Challenge: Host star emits strong radiation.
A system of seven Earth-sized planets — three in the habitable zone.
One of the best known “mini-solar systems” for life research.
Nicknamed “Earth 2.0” — slightly larger than Earth and orbits a Sun-like star.
Its climate stability makes it a prime candidate for long-term habitability.
Not planets — but possibly the most promising places for microbial life.
Hidden oceans under ice, hydrothermal vents — similar to Earth’s deep-sea origins.
🌌 Estimated exoplanets: 100+ billion
🧬 Confirmed habitable-zone worlds: 60+
👽 Confirmed life: None (yet).