NASA’s Phoenix Mars Lander has touched Martian soil with a fork-like probe for the first time and begun using a microscope that examines shapes of tiny particles by touching them. Phoenix’s robotic ...

Volcanic rock in the sample collected by Chang'e-6, the first mission that brought back soil from the far side of the Moon, is about 2.8 billion years old, suggesting the landing site was volcanically ...

Soil testing begins with the homeowner, gardener, and farmer. The most critical step in soil testing is soil sample collection. Soil testing can help growers make informed decisions about fertilizer ...