Billions of years ago, Mars was not the desolate rock that we now know it as. It was home to several oceans and lakes, but where all this water went, was quite a mystery.
Now, a new study funded by space agency NASA states that most of this water is buried under the surface of the red planet, trapped within the minerals in its crust. The study states that approximately 30-99% of the initial water is still trapped in the planet's crust.
Researchers say the Perseverance rover, which landed last month for a multiyear science mission on the planet, might be able to contribute to the area of research.