Reservoir of liquid water found deep in Martian rocks
Mars water: Liquid water reservoirs found under Martian crust
https://www.bbc.com/news/articles/czxl849j77ko
Studies of quakes detected from the planet's surface found it in the planet's rocky outer crust.
Scientists have discovered a reservoir of liquid water on Mars - deep in the rocky outer crust of the planet.
The findings come from a new analysis of data from Nasa’s Mars Insight Lander, which touched down on the planet back in 2018.
The lander carried a seismometer, which recorded four years' of vibrations - Mars quakes - from deep inside the Red Planet.
Analysing those quakes - and exactly how the planet moves - revealed "seismic signals" of liquid water.