An arrowhead-shaped rock on Mars sporting features that may hint at ancient microbial activity on the Red Planet has left ...

A strange rock on Mars is raising new questions about the possibility of ancient microbial life on the Red Planet. According ...

Mars rover makes epic climb to explore some of the oldest rocks in the Solar System The rock contains dark peppery spots, which rover scientists nicknamed ‘poppy seeds’, and larger dark-rimmed ...

A close up of the Mars rock of interest, showing where the poppy seeds and leopard spots are found. | Credit: J.A. Hurowitz et. al. An arrowhead-shaped rock on Mars sporting features that may hint ...