NASA's Perseverance rover discovered rocks on Mars, providing new evidence the red planet was once a wet, habitable world ...
When NASA’s Perseverance rover dropped through the thin Martian atmosphere and settled into Jezero Crater, it did more than stick a precision landing. For the first time, a robot on another world ...
Mars may have been a "blue planet" with an ocean the size of today's Arctic Ocean, a new study suggests.