"goldilocks planet" →
jesuisperdu: In astronomy and astrobiology, the habitable zone is the region around a star where a planet with sufficient atmospheric pressure can maintain liquid water on its surface. The concept is inferred from the study of conditions favorable for life on Earth – since liquid water is essential for all known forms of life, planets in this zone are considered the most promising sites to...
Radiolab: Is There an Edge to the Heavens? ...
New concepts for Mars-probing rovers would use Martian wind to move around the planet.