Sol 70 Press Release Videos The video gallery shows videos relating to the Phoenix Mission press release on August 5, 2008.


Animation of TEGA Sample Delivery and Analysis

This animation shows NASA's Phoenix Lander's Robotic Arm scoop delivering a sample to the Thermal and Evolved-Gas Analyzer (TEGA) and how samples are analyzed within the instrument.

TEGA has eight tiny ovens for measuring constituents in the atmosphere and in the soil, including possible organic constituents and the melting point of ice.

The scoop drops soil onto a fine mesh screen between TEGA's open doors. Some soil passes through the screen, which vibrates, into the throat of a funnel, where a spinning device called the 'whirligig' aids delivery into one half of a tiny oven. The soil sample is represented here by the white chip. The filled oven half then rotates and mates with the other oven half, closing the complete oven so sample heating can begin. The purple coil in this animation is the spring that moves the oven halves together.

Heating occurs at successively higher temperatures over several days. The energy required to heat the sample is measured to discover its thermal properties. Gases driven off during sample heating pass through tubing to the mass spectrometer for analysis.

Note that the exterior doors above the screen never close after sample delivery.



Video Credit: Animation Solar System Visualization Project, NASA Jet Propulsion Laboratory Download

Animation of Wet Chemistry Laboratory

This animation shows a sample delivery to the Wet Chemistry Laboratory, an instrument that is part of NASA's Phoenix Mars Lander's Microscopy, Electrochemistry, and Conductivity Analyzer (MECA). Operation of the Wet Chemistry Laboratory begins with thawing of a container of a calibration and soaking solution (mostly water) which is then dispensed into a beaker lined with sensors. Soil is then added and the solution is stirred for several hours while the sensors are monitored. Small crucibles of chemicals are added to test specific properties of the solution.



Video Credit: Image credit: NASA/JPL-Caltech/University of Arizona/SSV Download

Animation of Wet Chemistry Laboratory

This animation shows the Wet Chemistry Laboratory, an instrument that is part of NASA's Phoenix Mars Lander's Microscopy, Electrochemistry, and Conductivity Analyzer (MECA). Operation of the Wet Chemistry Laboratory begins with thawing of a container of a calibration and soaking solution (mostly water) which is then dispensed into a beaker lined with sensors. Soil is then added and the solution is stirred for several hours while the sensors are monitored. Small crucibles of chemicals are added to test specific properties of the solution.



Video Credit: Image credit: NASA/JPL-Caltech/University of Arizona/SSV Download