Collecting Meteorites
The
U.S.
Antarctic meteorite program is a joint project of the National Science Foundation (NSF),
the National Aeronautics and Space Administration (NASA), and the Smithsonian Institution. NSF
runs the collection program in Antarctica, while NASA and the Smithsonian curate the recovered
meteorites by classifying, distributing and storing them.
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Left: Polar tents offer the only protection from this Antarctic
storm. Right: One of the largest meteorites collected in Antarctica, 250 lb. LEW85320.
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Collecting meteorites in Antarctica is a hazardous and physically difficult job that
requires teamwork. Survival is the major part of the job, just as it is for astronauts in space. The
environment is extremely dangerous to the human body, with high winds and temperatures well below
freezing. Many layers of clothing offer some protection while working outside. Storms can cause
complete whiteouts that are disorientating and make it impossible to go anywhere outside. Furthermore,
the glaciers have numerous crevasses which can cause a person to fall to his/her death.
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Scientists documenting a meteorite as they collect it.
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Teams of four to eight scientists work together collecting meteorites in remote
field locations for about six weeks during the southern summer (Nov-Jan). The team leader and ice
expert plan the expedition and are responsible for safety. Transportation to field sites is by
helicopter or cargo airplane. On the ground the team travels by snowmobiles and lives in special
polar tents. Teams use the buddy system for safety and are never alone. Cooking and heating are
done with gas stoves; food is frozen, canned or freeze-dried; water is made by melting ice. Imagine
not having to (or being able to) take a shower for over a month!
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A numbering device is used to document the sample.
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Collecting meteorites is the fun part of the job. In some areas they are the only
rocks around and are easy to see on the ice. In other areas, especially glacial moraines, there are
many Earth rocks and scientists must know how to recognize various types of meteorites. Sometimes
meteorites are found while driving around on snowmobiles; other times they are identified while
walking or crawling on a rock-covered icefield. Each time a meteorite is collected, the scientists
document it by assigning it a number, photographing it, and recording its geographic location and
package it in clean bags.