Phoenix Scoop Ready For Sampling

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The double doors on the right are wide open in this image of four pairs of oven doors on Phoenix's Thermal and Evolved-Gas Analyzer. This pair of doors is for TEGA's oven No. 0, the third of the instrument's ovens to be opened and the first for which both doors have opened fully. The lander's Surface Stereo Imager took this photo on July 18, during the 53rd Martian day, or sol, since Phoenix landed. The image has been brightened to show the fine mesh. The doors are about 10 centimeters (4 inches) tall. (NASA/JPL-Caltech/University of Arizona/Texas A&M University)

The robotic arm scoop is empty and waiting for the command to collect icy soil.

By University Communications July 25, 2008

NASA's Phoenix Mars Lander's robotic arm scoop is primed and ready to collect a soil sample from the northern region of Mars to analyze for the presence of water and other ingredients.

Scientists and engineers on the mission on Friday prepared plans to send to Phoenix later in the day that would command the robotic arm to rasp the hard soil in the trench informally named "Snow White," collect the shavings and deliver them to an oven for analysis.

Images received on Earth on Friday morning confirmed that the scoop had been cleared of anything collected during previous days' testing. The scoop went through a sequence of moves to dump any remaining material. At the same time, the Thermal and Evolved-Gas Analyzer, or TEGA, was successfully prepared for the sample by purging it of any volatile materials.

"The successful completion of these preparatory activities clears the way for our next critical event, delivering the icy soil sample to TEGA," said Doug Ming, of NASA Johnson Space Center, in Houston, the team's science lead for Friday's planning.

The Phoenix mission is led by Peter Smith of The University of Arizona with project management at the Jet Propulsion Laboratory, located in Pasadena, Calif., and development partnership at Lockheed Martin, located in Denver. International contributions come from the Canadian Space Agency; the University of Neuchatel; the universities of Copenhagen and Aarhus, Denmark; Max Planck Institute, Germany; and the Finnish Meteorological Institute.

Et Cetera