RxPG News Feed for RxPG News

Medical Research Health Special Topics World
  Home
 
   Health
 Aging
 Asian Health
 Events
 Fitness
 Food & Nutrition
 Happiness
 Men's Health
 Mental Health
 Occupational Health
 Parenting
 Public Health
 Sleep Hygiene
 Women's Health
 
   Healthcare
 Africa
 Australia
 Canada Healthcare
 China Healthcare
 India Healthcare
 New Zealand
 South Africa
 UK
 USA
 World Healthcare
 
 Latest Research
 Aging
 Alternative Medicine
 Anaethesia
 Biochemistry
 Biotechnology
 Cancer
 Cardiology
 Clinical Trials
 Cytology
 Dental
 Dermatology
 Embryology
 Endocrinology
 ENT
 Environment
 Epidemiology
 Gastroenterology
 Genetics
 Gynaecology
 Haematology
 Immunology
 Infectious Diseases
 Medicine
 Metabolism
 Microbiology
 Musculoskeletal
 Nephrology
 Neurosciences
 Obstetrics
 Ophthalmology
 Orthopedics
 Paediatrics
 Pathology
 Pharmacology
 Physiology
 Physiotherapy
 Psychiatry
 Radiology
 Rheumatology
 Sports Medicine
 Surgery
 Toxicology
 Urology
 
   Medical News
 Awards & Prizes
 Epidemics
 Launch
 Opinion
 Professionals
 
   Special Topics
 Ethics
 Euthanasia
 Evolution
 Feature
 Odd Medical News
 Climate

Last Updated: Feb 19, 2013 - 1:22:36 AM
Research Article
Latest Research Channel

subscribe to Latest Research newsletter
Latest Research

   EMAIL   |   PRINT
Field Museum studies rare meteorite possibly from the outer asteroid belt

Dec 20, 2012 - 5:00:00 AM
Together with analysis performed by 43 other institutions, it was discovered that the Sutter's Mill meteorite is a so-called carbonaceous chondrite which is much more diverse in its composition than other meteorites of this type. The unique rock came from a dark, carbon-rich asteroid that experienced an unexpectedly large variety of geological processes on its surface. The reflectance spectrum of the Sutter's Mill meteorite suggests it is similar tothe asteroid that will be visited by the Japanese space mission Hayabusa-2 in 2018. Thus, this meteorite seems to be the ideal sample to prepare cosmochemists for the arrival of Hayabusa-2.

 
[RxPG] On April 22, 2012 a very fast-moving fireball was observed over large parts of California and Nevada. Equivalent to four kilotons of TNT, the fireball was photographed, and recorded by video and by weather Doppler-radars. The photographs and videos helped to trace back its orbit to the far reaches of the outer part of the asteroid belt. The radar data helped meteorite hunters to recover a total of 77 specimens, with the first ones found only two days after the fall. The meteorite was named Sutter's Mill, after the location where it fell. (Interestingly, Sutter's Mill was the place where gold was discovered in 1848, sparking the Californian gold rush.)

To study the meteorite, an international research consortium was assembled by local meteor astronomer Peter Jenniskens, PhD. The team included scientists from The Field Museum's Robert A. Pritzker Center of Meteoritics and Polar Studies and the University of Chicago. The Chicago group consisted of Robert A. Pritzker Assistant Curator Philipp R. Heck, PhD, and University of Chicago Professor and Field Museum research associate Andrew M. Davis, PhD, and senior scientist Stephen B. Simon, PhD.

The Sutter's Mill meteorite was scrutinized by almost the entire arsenal of observational and analytical state-of-the-art tools available to scientists today. The impressive synthesis of the collective results is published in this week's edition of the journal Science. Dr. Heck and his colleagues studied a piece of the meteorite that was donated to The Field Museum by meteorite collector and philanthropist Terry Boudreaux. Dr. Heck prepared a polished section of the meteorite that he and his colleagues first studied with a scanning electron microscope to prepare a petrographic description and produce high-quality X-ray maps to determine its chemical composition.

Together with analysis performed by 43 other institutions, it was discovered that the Sutter's Mill meteorite is a so-called carbonaceous chondrite which is much more diverse in its composition than other meteorites of this type. The unique rock came from a dark, carbon-rich asteroid that experienced an unexpectedly large variety of geological processes on its surface. The reflectance spectrum of the Sutter's Mill meteorite suggests it is similar tothe asteroid that will be visited by the Japanese space mission Hayabusa-2 in 2018. Thus, this meteorite seems to be the ideal sample to prepare cosmochemists for the arrival of Hayabusa-2.

Dr Heck, the curator-in-charge for meteorites at The Field Museum says, Iam fortunate to study this interesting, rare and unique meteorite, and will also preserve pristine pieces of it at The Field Museum for future generations of scientists who will be armed with analytical tools of which we can only dream of today.



Related Latest Research News
Bone loss associated with increased production of ROS
Sound preconditioning prevents ototoxic drug-induced hearing loss in mice
Crystal methamphetamine use by street youth increases risk of injecting drugs
Moderate to severe psoriasis linked to chronic kidney disease, say experts
Licensing deal marks coming of age for University of Washington, University of Alabama-Birmingham
Simple blood or urine test to identify blinding disease
Physician job satisfaction driven by quality of patient care
Book explores undiscovered economics of everyday life
Gene and stem cell therapy combination could aid wound healing
Solving the internet capacity crunch

Subscribe to Latest Research Newsletter

Enter your email address:


 Feedback
For any corrections of factual information, to contact the editors or to send any medical news or health news press releases, use feedback form

Top of Page

 
Contact us

RxPG Online

Nerve

 

    Full Text RSS

© All rights reserved by RxPG Medical Solutions Private Limited (India)