Most liveable alien worlds ranked
Earth Similarity Index
- Earth - 1.00
- Gliese 581g - 0.89
- Gliese 581d - 0.74
- Gliese 581c - 0.70
- Mars - 0.70
- Mercury - 0.60
- HD 69830 d - 0.60
- 55 Cnc c - 0.56
- Moon - 0.56
- Gliese 581e - 0.53
Planet Habitability Index
- Titan - 0.64
- Mars - 0.59
- Europa - 0.49
- Gliese 581g - 0.45
- Gliese 581d - 0.43
- Gliese 581c - 0.41
- Jupiter - 0.37
- Saturn - 0.37
- Venus - 0.37
- Enceladus - 0.35
Lets all move to Titan!
Listen
Science Podcast - Exoplanet habitability, weird planets, mantle geochemistry, and more (3 May 2013)
Sara Seager discusses the habitability of distant planets; Lizzie Wade takes us on a tour of weird and wacky exoplanets; Elizabeth Cottrell connects the mantle to the carbon cycle; and more.
Science Magazine Podcast