The golf cart-size rover was designed to last only three months, but proved itself to be an unexpected endurance athlete. It traveled more than the distance of a marathon when less than half a mile ...

NASA’s Opportunity rover has officially concluded its groundbreaking mission on Mars, sending its final signals to Earth and leaving behind a legacy that reshaped our understanding of the Red Planet.

This year, NASA’s scientific rover Opportunity celebrated a milestone. It has been exploring Mars for ten years, even though it was only supposed to operate for three months. John Callas is the ...

The longest-lived robot ever sent from Earth to the surface of another planet, Opportunity snapped pictures of a strange landscape and revealed surprising glimpses into the distant past of Mars for ...