Pluto Plant Assortment Database
Mainly because they angle towards the Sun and create along the Equator, where solar radiation is strongest, scientists suspect that light has a hand in the penitentes’ formation. Sunlight is believed to drive sublimation — basically carving out valleys among blade-like ridges. Scientists have observed such pairs before — on Mars, Mercury and Europa, one of Jupiter’s moons — where they suspect that a collision from an asteroid or a comet sent seismic waves racing by means of, and about,…