NASA has offered a sneak peek inside its Mars simulation habitat where four volunteers have now spent 150 days isolated from the outside world. By living within the confines of the 1,700-square-foot ...

An accident on Mars revealed the surprising contents of an otherwise unremarkable rock. (NASA/JPL-Caltech/MSSS) A rock on ...

Data from NASA's InSight lander suggests there's a chunky mix beneath the surface of Mars.

When a Mars rover accidentally crushed a small rock and exposed a flash of vivid yellow inside, it turned a routine drive into one of the most intriguing discoveries of the mission. The fractured ...