Summary
The sculpted channels of the Martian southern hemisphere speak loudly of flowing water, but this terrain is ancient. Consequently, planetary scientists often describe early Mars as ‘warm and wet’ and current Mars as ‘cold and dry.’
However, despite its crucial role in biological and geological processes, information about water on Mars is still controversial.
Tomohiro Usui and his collaborators at NASA’s Johnson Space Center and Carnegie Institute of Washington report on geochemical studies that help towards settling the controversy that surrounds the origin, abundance, and history of water on Mars.
The details of research