1. Land, ground, or landscape that exists on a celestial body outside of Earth, such as on another planet, moon, or asteroid
The rover explored the extraterrestrial terrain of Mars, searching for signs of ancient water.
O rover explorou o terreno extraterrestre de Marte, procurando sinais de água antiga.
2. The physical and geological characteristics of land surfaces beyond Earth
Scientists study extraterrestrial terrain to understand planetary formation.
Cientistas estudam o terreno extraterrestre para compreender a formação planetária.