The strongest hints yet that Mars once hosted living microbes are no longer theoretical models or ambiguous chemistry. They are etched into a single, oddly speckled rock in an ancient riverbed, where ...

NASA’s Curiosity rover has photographed a knobbly Martian rock that looks strikingly like a piece of ocean coral, a reminder ...

NASA has lost contact with its MAVEN spacecraft, which has been orbiting Mars for over a decade. The loss of signal occurred on Dec. 6 as the orbiter passed behind Mars from Earth's perspective. MAVEN ...

NASA’s Perseverance rover has identified an exotic rock on Mars that may be an iron-nickel meteorite, according to scientists on the mission team. The oddly sculpted rock, nicknamed Phippsaksla, ...