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Mars lander prepares to dig for signs of habitability -
Comparison of two summaries:
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Information unique to its summary
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Information unique to summary from multiple countries, from articles in English
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Information unique to summary from the United Kingdom, from articles in English
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The US space agency's new robotic craft on Mars has been commanded to carry out a second practice dig before beginning its real work. (article 5)
When the arm collected and released its first scoopful of soil on Sunday, some of the sample stuck to the scoop. (article 5)
Ground controllers were waiting to know how Phoenix fared last night, when an orbiting Mars probe passes over the landing site and relays the data to Earth. (article 6)
After taking the initial sample, Phoenix will spend the rest of the mission clawing through layers of soil to reach ice that is believed to be buried inches to a foot below the surface. (article 6)
Its landing site is in a region where NASA's orbiting Mars Odyssey spacecraft has detected gamma-ray and neutron signatures suggesting a significant amount of hydrogen - thought to be a constituent of frozen water - near the surface. (article 3)
Older missions, including the rovers Spirit and Opportunity, have shown that there was water at and near the planet's surface billions of years ago. (article 3)
After troubleshooting an electrical problem on NASA's Phoenix lander and performing a test scoop into the crumbly surface of the Martian northern plain, scientists said Monday that they are ready to dig for ice as early as today. (article 4)
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The US space agency's new robotic craft on Mars has been commanded to carry out a second practice dig before beginning its real work. (article 1)
When the arm collected and released its first scoopful of soil on Sunday, some of the sample stuck to the scoop. (article 1)
" The team felt they weren't really comfortable yet with the digging and dumping process said the mission's chief scientist , Peter Smith, from the University of Arizona, Tucson. (article 1)
The extra practice means the earliest that Phoenix would flex its 2.25m-long robotic arm to claw below the planet's northern plains for scientific study would be Wednesday. (article 1)
It will carry out a three-month mission to study Mars' geological history and determine whether the Martian environment could once have supported life. (article 1)
Images taken by the robotic arm camera revealed the spacecraft may have uncovered patches of water-ice when its thrusters blew away loose soil during the landing. (article 1)
For the second practice "dig and dump", engineers told the robot to go slightly deeper in the same region and use the camera on its arm to take photos this time. (article 1)
New photos sent back by Phoenix showed one of the spring-loaded doors on the oven complex had failed to open all the way. (article 1)
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Source articles
- Phoenix plunged into the Martian atmosphere at mor... (baltimoresun.com, 06/04/2008, 270 words)
- Scouting Mars (dallasnews.com, 06/02/2008, 797 words)
- Phoenix descending (Nature Journals, 06/04/2008, 713 words)
- Mars lander ready to do some digging (seattletimes.nwsource.com, 06/03/2008, 236 words)
- Mars lander gets digging practice (BBC News, 06/04/2008, 395 words)
- Mars lander prepares to dig for signs of habitability - (baltimoresun.com, 06/04/2008, 329 words)
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Source articles
- Mars lander gets digging practice (BBC News, 06/04/2008, 395 words)
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Story keywords
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Mars, Phoenix, lander, NASA, planet |
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blaster@cs.columbia.edu
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