May 12, 2012
New Gold Rush: Discovery Of Meteorite Leads To Hunt For More
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Meteorite fragments were recently scattered around Sutter´s Mill in California. This is the same region where the first gold nugget was found that sparked the Gold Rush in 1848. Scientists hope the meteorites may hold answers to unsolved mysteries about our solar system and the origins of molecules necessary for life.
When the Gold Rush began, people headed to California seeking their fortune. Now, with this meteorite hunt, people once again have flocked to this area to search for scientific treasures.
The Sutter's Mill Meteorite landed at 7:51 a.m. PDT on Sunday, April 22, 2012, in a horse pasture located in the Sierra Nevada Mountains outside of Lotus, Calif. The de Haas family owns that property.
Alan Ehrgott, who lives in the Sutter Mill area, said "It sounded like a sonic boom but longer”. “It seemed to last 45 seconds. It stopped me in my tracks."
Merv de Hass, who owns the land where the meteorite was found, donated the fragment to NASA. He said, "If I could contribute to science in some small way, then that would be great,” he said. “I'm looking forward to the results."
Eugena de Haas lives on the land where the meteorite was found. She gave NASA scientists approval to search that land. She said, "I feel like I have done a service to my country".
“The de Haas family welcomed NASA´s involvement with open arms,” said NASA Lunar Science Institute (NLSI) Director Yvonne Pendleton. “I would like to express my personal gratitude to them. They should be commended for their contribution to scientific discovery."
This is a very rare type of meteor and scientists have precious few samples of its kind. The meteorites are very interesting to scientists from an astrobiology perspective. They contain molecules related to how the building blocks for life on Earth may have been delivered from outer space. Scientist believe this meteor could hold the answers to the origin of life on Earth and the universe. By studying the meteor, scientists will learn more about the formation of our planets and the early solar system.
“This is among the most chemically primitive meteorites,” said NLSI Deputy Director Greg Schmidt. "It´s like asking ℠how did life on Earth begin?´ and then having a fossil fall right in your hands. This is exciting stuff – who knows what´s inside? The Sutter´s Mill Meteorite could be the most profound sample collected in over 40 years.”
People who work at NASA had an opportunity to participate in the meteor hunt. Peter Jenniskens, who led the search is a meteor astronomer with the SETI Institute working in collaboration with NASA Lunar Science Institute (NLSI). A group of NASA Ames employees went to the mountains to assist in the search on Thursday, May 3 and Friday, May 4, 2012.
"It´s wonderful to see people coming together in the name of science,” said Pendelton.
Finding this meteorite is equivalent to winning the lottery For Jenniskens. Because this discovery is a very rare carbonaceous chrondrite that decomposes quickly in damp weather, the science team hopes to cover a large amount of terrain to identify possible candidate pieces for recovery before they decompose.
Jenniskens notes the exact location of the meteorites as they are found to better understand the meteor´s fall to Earth.
"I am grateful this meteorite was found quickly,” Jenniskens said. “We need to find as much material as possible from the damp environment before weather affects the rocks too badly."
Since there was such a large area to search in a short amount of time, Airship Ventures Zeppelin was called in to help with the search. The airship provides an ideal search vehicle because of its ability to fly slowly and methodically over an area with a group of trained observers aboard to relay possible candidate coordinates to a ground team for investigation. The airship carries a high definition gyrostabilized camera, often used to help photograph sporting events. In addition to the camera mounted on the airship, observers used binoculars and cameras to help spot burn patches and potential impact sites.
"I think this is the first time in history that anyone has searched for meteorites with an airship," said Schmidt.
The fragment donated by the de Haas family was one of the largest meteorites recovered so far. The search for even bigger samples will continue over the next few months. Scientists will be studying these meteorite samples for many years to come.