Due to the spacecraft's sufficient power and experiment capacity, NASA announced on July 31 that the mission would continue operations through Sept. 30. Once the lander finishes collecting science data, the mission teams will continue the analysis of the measurements and observations.
"We have been successful beyond my wildest dreams, and we're not done yet learning from Mars about its secrets," said Peter Smith, Phoenix principal investigator from The University of Arizona, Tucson.
"We are still working to understand the properties and the history of the ice at our landing site on the northern plains of Mars. While the sun has begun to dip below the horizon, we still have power to continue our observations and experiments. And we're hoping to see a gradual change in the Martian weather in the next few weeks," he said.
Among the critical questions the Phoenix science team is trying to answer is whether the northern region of Mars could have been a habitable zone.
Phoenix has already confirmed the presence of water ice, determined the soil is alkaline and identified magnesium, sodium, potassium, chloride and perchlorate in the soil. Chemical analyses continue even as Phoenix's robotic arm reaches out for more samples to sniff and taste.
"It's been gratifying to be able to share the excitement of our exploration with the public through the thousands upon thousands of images that our cameras have taken. They have been available to the public on our web site as soon as they are received on Earth," Smith said. Phoenix's Surface Stereo Imager, Robotic Arm Camera and microscope have returned more than 20,000 pictures since landing day, May 25.
At least one ice water cloud has been observed and consistent wind patterns have been recorded over the landing site.The team is currently working to diagnose an intermittent interference that has become apparent in the path for gases generated by heating a soil sample in the Thermal and Evolved-Gas Analyzer to reach the instrument's mass spectrometer.
Vapors from all samples baked to high temperatures have reached the mass spectrometer so far, however data has shown that the gas flow has been erratic, which is puzzling the scientists.
Meanwhile, plans call for Phoenix to widen its deepest trench, called "Stone Soup," to scoop a fresh sample of soil from that depth for analysis in the wet chemistry laboratory of the Microscopy, Electrochemistry and Conductivity Analyzer (MECA). Stone Soup measures about 18 centimeters (7 inches) deep. The first attempt to collect a sample from Stone Soup, on Aug. 26, got 2 to 3 cubic centimeters (half a teaspoon) into the scoop. This was judged to be not quite enough, so delivering a sample was deferred.
In coming days the team also plans to have Phoenix test a revised method for handling a sample rich in water-ice. Two such samples earlier stuck inside the scoop.
The Phoenix mission is led by Peter Smith of the University of Arizona, Tucson, with project management at JPL and development partnership at Lockheed Martin, Denver. International contributions are provided by the Canadian Space Agency; the University of Neuchatel, Switzerland; the universities of Copenhagen and Aarhus, Denmark; the Max Planck Institute, Germany; and the Finnish Meteorological Institute. JPL is a division of the California Institute of Technology in Pasadena.MEDIA CONTACTS:
Further reports about: > Analyzer > Evolved-Gas Analyzer > Mars > Microscope > NASA > PHOENIX > Phoenix Mars Lander > Phoenix's Surface Stereo Imager > Robotic Arm Camera > Tucson > alkaline > chloride > identified magnesium > mass spectrometer > perchlorate > potassium > sodium > spacecraft > water ice
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24.03.2017 | University of Massachusetts at Amherst
Gravitational wave kicks monster black hole out of galactic core
24.03.2017 | NASA/Goddard Space Flight Center
Astronomers from Bonn and Tautenburg in Thuringia (Germany) used the 100-m radio telescope at Effelsberg to observe several galaxy clusters. At the edges of these large accumulations of dark matter, stellar systems (galaxies), hot gas, and charged particles, they found magnetic fields that are exceptionally ordered over distances of many million light years. This makes them the most extended magnetic fields in the universe known so far.
The results will be published on March 22 in the journal „Astronomy & Astrophysics“.
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Silicon nanosheets are thin, two-dimensional layers with exceptional optoelectronic properties very similar to those of graphene. Albeit, the nanosheets are...
Enzymes behave differently in a test tube compared with the molecular scrum of a living cell. Chemists from the University of Basel have now been able to simulate these confined natural conditions in artificial vesicles for the first time. As reported in the academic journal Small, the results are offering better insight into the development of nanoreactors and artificial organelles.
Enzymes behave differently in a test tube compared with the molecular scrum of a living cell. Chemists from the University of Basel have now been able to...
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