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 ...

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 ...

New pictures from NASA's OSIRIS-REx spacecraft show the probe's sample collector is jam packed with small rocks, chips and soil captured from the surface of the asteroid Bennu on Tuesday. The samples ...

Agricultural soil testing is critical to determining soil’s nutrient concentration and variability across your fields. It is ideal to test your fields’ soil at least every two to three years to inform ...