Biological sample

Laboratory glassware

Biological sample

Laboratory tests

Scanning biological sample

Stool sample jar

Mars Science Laboratory

Mars Science Laboratory

Illustration of bottles with fluids

Illustration demonstrates the third step when obtaining clean catch specimen. The female client begins urinating, allowing the first urine to flow into the toilet. She then holds the container under the urine stream to obtain the specimen.

Artist concept of NASA's Mars Science Laboratory Curiosity rover.

Artist's concept of a proposed Mars sample return mission.

Bottles with sample oils in laboratory