And the measurements from Viking on the biology experiments did not suggest evidence of microbial life or any life on the surface of Mars.

NPR: Revisiting the Viking Missions to Mars

My experiments make use of sophisticated spectroscopy measurements of resonance energy transfer, to help gauge the accuracy of computational simulations of protein dynamics.

WHITEHOUSE: Engage and Connect

As it landed, it made measurements, meteorological measurements, measurements of the surface, and did some very sophisticated biology experiments.

NPR: Revisiting the Viking Missions to Mars

Turn-of-the-century Harvard University once required applicants to perform, under teacher supervision, several of 40 physics experiments and submit a record of their observations and measurements.

FORBES: Instant feedback in the classroom