How the Moon helped mold the Earth into a habitable potato
How did the Earth keep from freezing over under a faint young Sun 4 billion years ago, and what could it have to do with potatoes and the Moon?!
Planets Get Heat With A Little Help From Their Friends
For planets too old for plate tectonics, a companion planet could drive tidal heating to keep conditions primed for life.
How to Keep Warm Outside the Habitable Zone
Today’s paper is too awesome to be contained in merely one astrobite, so we’ve split it into two parts. In Part 1, find out how you can keep warm even if you’re far outside your star’s habitable zone (if “you” are a planet or moon, that is). Tune in tomorrow for Part 2: Superhabitability and You!