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

A crater on Mars has a bright patch of ice. It's the second time in over a decade that the crater and ice has been observed ...

While the car-sized spacecraft flew around the Mars system, flight controllers on Earth temporarily lost communication with ...

NASA’s Perseverance rover found large crystals of quartz with a high purity on Mars, which probably had to have formed in the ...

but this ancient shoreline on Mars seemed to lie inside a 2,050-mile-wide (3,300-kilometer-wide) impact crater called Utopia Basin. Utopia Basin is, in fact, the largest known crater in the entire ...

A close up of the Mars rock of interest ... which runs along the inner wall of the crater. The rock features spots of black, blue, or greenish hues, which the researchers have nicknamed "poppy ...