
09-25-2026
Purdue-led study finds an ancient history of water on Mars that shifted over time
From orbit, a carbonate-rich band of rock along the inside edge of Mars’ Jezero Crater looked like it might be the remains of an ancient lakeshore. Then NASA’s Perseverance rover drove up to it and found something more complicated. Instead of preserving evidence from one watery environment, the rocks recorded several episodes when water moved through or interacted with them, according to a Purdue University-led study. The research was led by Candice Bedford, a research scientist in Purdue’s Department of Earth, Atmospheric, and Planetary Sciences.