The universe, now with a search bar.
See what you would weigh, how high you could jump, how long a year lasts and how Earth-like a world is.
Start here
Pick a world and stand on it. Every object links to its star, neighbours, and look-alikes.
Most Earth-like→Worlds closest to home in size and temperatureNearest worlds→Our cosmic neighborhood, closest firstHabitable zone→Where a rocky world could hold liquid waterGalaxies→Zoom out to the wider universe
- ESI
- Earth Similarity Index (1.00 = Earth).
- Weight
- g = multiple of Earth gravity · ≈ estimated from size · ≥ minimum (could be more) · plain number = measured.
Start with a world you know
ESI 0.66
Mars
Rocky world
- Distance
- in our solar system
- Your weight
- 0.38 g
- Year
- 1.9 years
ESI 0.62
The Moon
Rocky world
- Distance
- in our solar system
- Your weight
- 0.17 g
- Year
- 27 days
ESI 0.32
Jupiter
Gas giant
- Distance
- in our solar system
- Cloud-top pull
- 2.53 g
- Year
- 11.9 years
ESI 0.95
TRAPPIST-1 e
Rocky world
- Distance
- 40.5 ly
- Your weight
- 0.82 g
- Year
- 6.1 days
ESI 0.89
Proxima Cen b
Rocky world
- Distance
- 4.2 ly
- Your weight
- ≥ 1.01 g
- Year
- 11 days
ESI 0.87
Kepler-452 b
Rocky world
- Distance
- 1,799 ly
- Your weight
- ≈ 1.24 g
- Year
- 385 days
ESI 0.93
TOI-700 d
Rocky world
- Distance
- 102 ly
- Your weight
- ≈ 1.21 g
- Year
- 37 days
Best, worst & record-breaking
Best places to visitThe most Earth-like, temperate worlds we know, ranked by similarity to home.→Worst places to visitA cosmic travel advisory: the hottest, coldest, and most hostile worlds we know.→What would you weigh?Your exact weight on the Moon, Mars, Jupiter, or any world in the catalog.→Cosmic recordsThe hottest, coldest, densest and closest worlds, and the extremes beyond them.→
Worlds worth the trip
ESI 0.97
Wolf 1069 b
Rocky world
- Distance
- 31.3 ly
- Your weight
- ≥ 1.08 g
- Year
- 16 days
ESI 0.95
TRAPPIST-1 e
Rocky world
- Distance
- 40.5 ly
- Your weight
- 0.82 g
- Year
- 6.1 days
ESI 0.94
Teegarden's Star b
Rocky world
- Distance
- 12.5 ly
- Your weight
- ≥ 1.05 g
- Year
- 4.9 days
ESI 0.93
TOI-700 d
Rocky world
- Distance
- 102 ly
- Your weight
- ≈ 1.21 g
- Year
- 37 days
ESI 0.93
Kepler-1649 c
Rocky world
- Distance
- 301 ly
- Your weight
- ≈ 1.07 g
- Year
- 20 days
ESI 0.93
GJ 1061 d
Rocky world
- Distance
- 12.0 ly
- Your weight
- 1.24 g
- Year
- 13 days
ESI 0.93
TOI-700 e
Rocky world
- Distance
- 102 ly
- Your weight
- ≈ 0.85 g
- Year
- 28 days
ESI 0.93
GJ 1002 b
Rocky world
- Distance
- 15.8 ly
- Your weight
- ≥ 1.02 g
- Year
- 10 days
ESI 0.89
Proxima Cen b
Rocky world
- Distance
- 4.2 ly
- Your weight
- ≥ 1.01 g
- Year
- 11 days
ESI 0.83
Proxima Cen d
Rocky world
- Distance
- 4.2 ly
- Your weight
- ≥ 0.54 g
- Year
- 5.1 days
ESI 0.64
Barnard c
Rocky world
- Distance
- 6.0 ly
- Your weight
- ≥ 0.61 g
- Year
- 4.1 days
ESI 0.59
Barnard b
Rocky world
- Distance
- 6.0 ly
- Your weight
- ≥ 0.58 g
- Year
- 3.2 days
ESI 0.70
Barnard e
Rocky world
- Distance
- 6.0 ly
- Your weight
- ≥ 0.48 g
- Year
- 6.7 days
ESI 0.53
Barnard d
Rocky world
- Distance
- 6.0 ly
- Your weight
- ≥ 0.55 g
- Year
- 2.3 days
ESI 0.21
eps Eri b
Gas giant
- Distance
- 10.4 ly
- Cloud-top pull
- 1.67 g
- Year
- 7.3 years
ESI 0.76
GJ 887 d
Sub-Neptune
- Distance
- 10.7 ly
- Your weight
- ≥ 1.11 g
- Year
- 51 days
ESI 0.12
TOI-5699 b
Gas giant
- Distance
- 994 ly
- Cloud-top pull
- 0.64 g
- Year
- 22 days
- Discovered
- 2026
ESI 0.19
TOI-5120 b
Gas giant
- Distance
- 750 ly
- Cloud-top pull
- 3.31 g
- Year
- 25 days
- Discovered
- 2026
TIC 237254473 b
Sub-Neptune
- Distance
- 1,326 ly
- Your weight
- ≈ 1.00 g
- Year
- 10 days
- Discovered
- 2026
TIC 219893931 b
Sub-Neptune
- Distance
- 1,339 ly
- Your weight
- ≈ 1.04 g
- Year
- 6.4 days
- Discovered
- 2026
Elias 2-24 b
Gas giant
- Distance
- 443 ly
- Cloud-top pull
- 5.38 g
- Year
- –
- Discovered
- 2026
TOI-2158 c
Gas giant
- Distance
- 647 ly
- Cloud-top pull
- ≥ 2.83 g
- Year
- 415 days
- Discovered
- 2026
ESI 0.59
TOI-789 c
Rocky world
- Distance
- 142 ly
- Your weight
- 2.27 g
- Year
- 8.0 days
- Discovered
- 2026
ESI 0.66
TOI-789 d
Rocky world
- Distance
- 142 ly
- Your weight
- –
- Year
- 13 days
- Discovered
- 2026
Explore the wider universe