A habitable planet in interstellar space?
Maybe it could exist!
“… a rogue planet drifting through interstellar space could harbor a subglacial liquid ocean despite its low emission temperature, and so might be considered habitable.”
http://arxiv.org/PS_cache/arxiv/pdf/1102/1102.1108v1.pdf
“… a rogue planet drifting through interstellar space could harbor a subglacial liquid ocean despite its low emission temperature, and so might be considered habitable.”
http://arxiv.org/PS_cache/arxiv/pdf/1102/1102.1108v1.pdf