Plenty of shade
Kepler 37b might be tidally locked to its star. If so, half the planet would be in shade.
Exoplanet hunters have made their smallest find ever, Kepler-37b, which is only fractionally larger than Earth's moon and rather smaller than Mercury. The planet and its star are about 210 light-years from Earth in the constellation Lyra. In a Letter to Nature, over 50 co-authors explain how the Kepler spacecraft helped them …
A knotted hankie? Stop it!!!! My Brain hurts