Over billions of years this rusty material – iron oxide – has been eroded down into ... liquid water on Mars’s surface today, its rusty red minerals were thought to arise from dry iron ...

“It’s just that our understanding of why Mars is red has been transformed.” Scientists have wondered about the exact composition of the iron oxide in Martian dust, because understanding how ...

Over billions of years, this rusty material - iron oxide - has been broken down into ... have been wrong about the reason for the planet's red colour all along. This is because previous studies ...

Over billions of years, this rusty material—iron oxide—has been broken down into ... with novel laboratory techniques shows that Mars's red color is better matched by iron oxides containing ...