Mars: What lies beneath the surface?
The chief scientist on Nasa's InSight mission, Bruce Banerdt, says our understanding of Mars' interior - its crust, mantle and core - is uncertain. He spoke with our correspondent Jonathan Amos.
The chief scientist on Nasa's InSight mission, Bruce Banerdt, says our understanding of Mars' interior - its crust, mantle and core - is uncertain. He spoke with our correspondent Jonathan Amos.