HomeScience & ExplorationTop 10 Most Habitable Exoplanets
Top 10Updated 2026年4月19日

Top 10 Most Habitable Exoplanets

Ranking based on Earth Similarity Index (ESI), habitable zone position, stellar stability, and atmospheric potential. Data sourced from NASA Exoplanet Archive, ESA, and peer-reviewed academic literature as of 2024-2025.

Current #1
Kepler-442b

Interesting Facts & Summary

Why Kepler-442b is the ultimate 'Super-Earth'?

In the hunt for exoplanets, Kepler-442b is widely considered one of the most promising candidates for harboring life. Here is why it consistently ranks at the top:

  • High Habitability Index: It boasts an Earth Similarity Index (ESI) of 0.84, placing it in the top tier of potentially habitable worlds ever discovered.
  • The Stellar Advantage: Unlike Earth, which orbits a G-type star, Kepler-442b orbits a K-type orange dwarf. These stars are more stable and live significantly longer than our Sun, potentially providing life with billions of years more time to evolve without the threat of stellar evolution.
  • More Than Just Rock: With a radius approximately 1.34 times that of Earth and a mass about 2.3 times larger, it is likely a rocky world located firmly in the center of its star's habitable zone. If Earth is a 'furnished starter home,' Kepler-442b is a time-tested, premium estate with immense biological potential.
RankPlanet NameEarth Similarity IndexDistance (light-years)Host Star Type
Kepler-442b
0.84120.6K-type orange dwarf
Kepler-62e
0.831200K-type orange dwarf
Kepler-438b
0.88640M-type red dwarf
4
Proxima Centauri b
0.874.24M-type red dwarf
5
Kepler-186f
0.64582M-type red dwarf
6
Gliese 667Cc
0.8523.6M-type red dwarf (triple system)
7
Kepler-22b
0.71635G-type yellow dwarf (Sun-like)
8
TRAPPIST-1e
0.9139.6M-type ultracool red dwarf
9
TOI-700 d
0.93101.5M-type red dwarf
10
Kepler-1649c
0.9300M-type red dwarf

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