A soil test is only as accurate as the sample on which it is made. A soil sample weighing about 1/2 pound is used to represent thousands of pounds of soil in the lawn or garden. Therefore, it is ...

These tools include lasers that can analyze rock chemistry from several meters away, specialized cameras that beam detailed ...

Hausrath became the lead author of a study analyzing NASA’s first-ever Martian samples of soil, airfall dust and rock ...