Energy News  
Robot Finds Meteorites In Antarctica


Pittsburgh - February 4, 2000 -
Carnegie Mellon University's Nomad robot, which conducted an autonomous search for meteorites in Antarctica from Jan. 20-30, has successfully completed its mission, examining more than 100 indigenous rocks, studying about 50 in detail and classifying seven specimens as meteorites.

An expert from the National Science Foundation's Antarctic Search for Meteorites (ANSMET) program, who collected the specimens after Nomad identified them in the field, has concluded that five of the seven are meteorites.

The other two raise enough questions about their composition to merit further study. ANSMET is housed at Case Western Reserve University in Cleveland.

Meteorites are curated at the Johnson Space Flight Center in Houston and made available to scientists around the world.

"Nomad has found and correctly classified three indigenous meteorites in-situ," said Dimitrios Apostolopolous, a systems scientist at Carnegie Mellon's Robotics Institute and project manager of the Robotic Antarctic Meteorite Search initiative.

"The robot correctly classified three other indigenous meteorites and misclassified one as terrestrial rock. Nomad achieved these results autonomously and without any prior knowledge about the samples."

Most of the chondrites that Nomad found are relatively common types, composed mainly of rock with small metallic infusions that probably originated from asteroids.

One achondrite meteorite which Nomad classified as interesting is so rare that the robot didn't have the data in its base to make a determination.

The robot made its discoveries at Elephant Moraine in eastern Antarctica, 160 miles northwest of the United States base at McMurdo Station.

The area is an important site for meteorite discovery, with nearly 2,000 specimens recovered during seven previous visits, including the first meteorite identified as definitely being from Mars.

This expedition took place in an area that was last searched by ANSMET scientists in 1979.

Nomad's expedition and the discoveries it has made are significant because it marks the first time a robot, relying on sensors and artificial intelligence, has been able to find a meteorite lying on the ice and distinguish it from ordinary rocks in the area.

The first discovery came on Jan. 22, as the robot traveled over an area the size of a football field in patterns similar to those a person would make when mowing a lawn.

The search site contained false meteorite look-alikes, sometimes called "meteorwrongs," as well as typical Antarctic rocks.

When Nomad encounters a promising rock, it deploys its manipulator arm containing a high-resolution camera and a spectrometer to gather visual images and spectroscopic data upon which to determine a specimen's composition.

When Nomad found its first meteorite, it had already completed 350 meters of linear searches and had examined seven other rocks.

ROBOTS DO ANTARCTICA - PART TWO

Community
Email This Article
Comment On This Article

Related Links
Space



Memory Foam Mattress Review
Newsletters :: SpaceDaily :: SpaceWar :: TerraDaily :: Energy Daily
XML Feeds :: Space News :: Earth News :: War News :: Solar Energy News


Satellite Launch To Boost DTH In India
Calcutta, India (SPX) Dec 28, 2005
The successful launch Thursday of India's heaviest satellite from spaceport of Kourou in French Guyana may have boosted the country's space research efforts to yet another level, but it has also lifted the spirits of at least three Direct-To-Home televisions broadcasters, one of which has been waiting for years to launch its services in India.























The content herein, unless otherwise known to be public domain, are Copyright 1995-2006 - SpaceDaily.AFP and UPI Wire Stories are copyright Agence France-Presse and United Press International. ESA PortalReports are copyright European Space Agency. All NASA sourced material is public domain. Additionalcopyrights may apply in whole or part to other bona fide parties. Advertising does not imply endorsement,agreement or approval of any opinions, statements or information provided by SpaceDaily on any Web page published or hosted by SpaceDaily. Privacy Statement