[Malone LaVeigh]

I sometimes wonder how broad the definition of “habitable” is. Aside from gravity and atmosphere, how many of these planets can support the agriculture necessary to maintain human life?

[KevinDavis]

There are ways to modify the human dna to survive on such planets..

[dsrtsage]

“I sometimes wonder how broad the definition of “habitable” is. Aside from gravity and atmosphere, how many of these planets can support the agriculture necessary to maintain human life?”

Agriculture? Get with the 21st century man. Everybody knows that food comes from stores.