A Gravity Map of Mars Uncovers Subsurface Mysteries

A team of scientists presented a new gravity map of Mars at the Europlanet Science Congress 2024. The map shows the presence of dense, large-scale structures under Mars’ long-gone ocean and that mantle processes are affecting Olympus Mons, the largest volcano in the Solar System.
The new map and analysis include data from multiple missions, including NASA’s InSIGHT (Interior Exploration using Seismic Investigations, Geodesy and Heat Transport) mission. They also use data from tiny de