If you ever drove past the Rockies and thought mountains were permanent and unmoving, a recent photo taken from space might make you think again. NASA astronaut Jessica Meir, looking out the window of ...
Glaciers move on timescales that once made them seem safely slow, retreating over centuries rather than decades. Satellite ...
Glaciers of carbon dioxide are moving, creating deposits kilometers thick today across the south polar region of Mars, something that could have been going on more than 600,000 years, a paper by ...