Below Europa’s thick icy crust is a massive, global ocean where the snow floats upwards onto inverted ice peaks and submerged ravines. The bizarre underwater snow is known to occur below ice shelves on Earth, but a new study shows that the same is likely true for Jupiter’s moon, where it may play a role… Continue Reading Underwater Snow Gives Clues About Europa’s Icy Shell
Hope for Present-Day Martian Groundwater Dries Up
Liquid water previously detected under Mars’ ice-covered south pole is probably just a dusty mirage, according to a new study of the red planet led by researchers at The University of Texas at Austin. Scientists in 2018 had thought they were looking at liquid water when they saw bright radar reflections under the polar cap.… Continue Reading Hope for Present-Day Martian Groundwater Dries Up