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NASA's Phoenix Lander Has An Oven Full Of Martian Soil

Date:
June 11, 2008
Source:
NASA/Jet Propulsion Laboratory
Summary:
NASA's Phoenix Mars Lander has filled its first oven with Martian soil. The lander's Robotic Arm delivered a partial scoopful of clumpy soil from a trench informally called "Baby Bear" to the number 4 oven on TEGA last Friday, June 6, which was 12 days after landing.

NASA's Phoenix Mars Lander's Surface Stereo Imager took this image on Sol 14 (June 8, 2008), the 14th Martian day after landing. It shows two trenches dug by Phoenix's Robotic Arm.
Credit: NASA/JPL-Caltech/University of Arizona/Texas A&M University

NASA's Phoenix Mars Lander has filled its first oven with Martian soil.

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"We have an oven full," Phoenix co-investigator Bill Boynton of the University of Arizona, Tucson, said today. "It took 10 seconds to fill the oven. The ground moved."

Boynton leads the Thermal and Evolved-Gas Analyzer instrument, or TEGA, for Phoenix. The instrument has eight separate tiny ovens to bake and sniff the soil to assess its volatile ingredients, such as water.

The lander's Robotic Arm delivered a partial scoopful of clumpy soil from a trench informally called "Baby Bear" to the number 4 oven on TEGA last Friday, June 6, which was 12 days after landing.

A screen covers each of TEGA's eight ovens. The screen is to prevent larger bits of soil from clogging the narrow port to each oven so that fine particles fill the oven cavity, which is no wider than a pencil lead. Each TEGA chute also has a whirligig mechanism that vibrates the screen to help shake small particles through.

Only a few particles got through when the screen on oven number 4 was vibrated on June 6, 8 and 9.

Boynton said that the oven might have filled because of the cumulative effects of all the vibrating, or because of changes in the soil's cohesiveness as it sat for days on the top of the screen.

"There's something very unusual about this soil, from a place on Mars we've never been before," said Phoenix Principal Investigator Peter Smith of the University of Arizona. "We're interested in learning what sort of chemical and mineral activity has caused the particles to clump and stick together."

Plans prepared by the Phoenix team for the lander's activities on Thursday, June 12 include sprinkling Martian soil on the delivery port for the spacecraft's Optical Microscope and taking additional portions of a high-resolution color panorama of the lander's surroundings.

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


Story Source:

The above story is based on materials provided by NASA/Jet Propulsion Laboratory. Note: Materials may be edited for content and length.


Cite This Page:

NASA/Jet Propulsion Laboratory. "NASA's Phoenix Lander Has An Oven Full Of Martian Soil." ScienceDaily. ScienceDaily, 11 June 2008. <www.sciencedaily.com/releases/2008/06/080611143120.htm>.
NASA/Jet Propulsion Laboratory. (2008, June 11). NASA's Phoenix Lander Has An Oven Full Of Martian Soil. ScienceDaily. Retrieved November 24, 2014 from www.sciencedaily.com/releases/2008/06/080611143120.htm
NASA/Jet Propulsion Laboratory. "NASA's Phoenix Lander Has An Oven Full Of Martian Soil." ScienceDaily. www.sciencedaily.com/releases/2008/06/080611143120.htm (accessed November 24, 2014).

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