The water source was identified as a large underground reservoir of liquid water located in the cracks of rocks within the Martian crust, about 7 to 13 miles below the surface, according to the study. In previous research, scientists discovered that Mars once had liquid water on its surface more than three billion years ago, according to the paper. That water eventually went to the deep crust; since then, little has been lost to space. According to Michael Manga, one of the main authors of the paper and campus professor in the Department of Earth and planetary science, Mars is now so cold on the surface that water cannot exist there as a liquid. While current seismic data suggests that liquid water exists beneath Mars’ surface, Manga said as more data is collected, he is open to the possibility that this finding may be disproven. Read more through link in bio. ✍️: Rae Wymer | raewymer . . . #dailycal #berkeley #research #mars #geology