"If the planet had only 15 per cent as much air as the Earth, they said, that would still ferry enough heat around to the dark side to keep the atmosphere from freezing out.."


"M dwarfs are back on the table." (The pdf.)


(from Wikipedia: Planetary habitability)


"...tidally locked Gliese 581 could have convective cells which extend the whole sun facing side and beyond, but no cyclonic activity."