Ancient Crust Formation on Mars Revealed by Meteorite Analysis

Fragments from a meteorite, identified as originating from Mars, indicate that continents formed on the planet approximately 4.4 billion years ago. This discovery sheds light on the early evolution of the Martian surface, mirroring processes on early Earth. The meteorite, NWA7533, nicknamed "Black Beauty," exhibits a complex texture distinct from other Martian meteorites. Analysis of rare gases trapped within the meteorite's fragments matches the Martian atmosphere. These gases provide evidence of conditions when the crust was forming. The dark matrix, interspersed with light and dark fragments, suggests consolidation after multiple impacts on the Martian surface. The study suggests that early Mars may have experienced similar climatic and geological conditions to those that led to the formation of Earth's continents. This provides new evidence of ancient Martian rock, enriching the understanding of the planet's early history.