As NASA astronauts aim for landings in 2027, geologists find surprises in recently retrieved samples from the far ...

Data collected by NASA's InSight lander suggest that ancient internal processes are responsible for the "Martian dichotomy" ...

The southern highlands are heavily pockmarked by craters and stand as much as 5 miles (8 kilometers) higher on average than the smooth, rolling plains of the lowlands above them. But researchers ...

This would mean the catastrophic impact of either a single moon-sized body or ... upwelling beneath the southern highlands and downwelling beneath the northern lowlands. Our marsquake evidence ...

“This means it’s difficult to explain why the southern highlands of Mars have a very thick and ancient crust, while the northern lowlands are very young and thin.” “Some models have suggested that ...

Craters on the southern highlands indicate they are older than the northern lowlands, suggesting a significant ... resulted from a massive impact by a moon-sized body or multiple smaller ones ...

The other is that a massive collision with a moon-size object or multiple ... near the border between the northern lowlands and the southern highlands, which allowed the team to compare how ...

The southern highlands are heavily pockmarked by craters and stand as much as 5 miles (8 kilometers) higher on average than the smooth, rolling plains of the lowlands above them. But researchers have ...