* Astronomy

Members Login
Post Info
TOPIC: Meteorites


L

Posts: 131433
Date:
RE: Meteorites
Permalink  
 




__________________


L

Posts: 131433
Date:
Permalink  
 



Hopper is the only dog in history to find a meteorite and return it to her ouner.

__________________


L

Posts: 131433
Date:
Meteorite classification
Permalink  
 


The ultimate goal of meteorite classification is to group together all meteorite specimens that share a common origin on a single, identifiable parent body. This could be a planet, asteroid, Moon, or other current Solar System object, or one that existed some time in the past (e.g. a shattered asteroid). However, with a few exceptions, this goal is beyond the reach of current science, mostly because there is inadequate information about the nature of most solar system bodies (especially asteroids and comets) to achieve such a classification. Instead, modern meteorite classification relies on placing specimens into "groups" in which all members share certain key physical, chemical, isotopic, and mineralogical properties that are consistent with a common origin on a single parent body, even if that body is not identified. It is possible that several meteorite groups classified in this way may come from a single, heterogeneous parent body or that a single group may contain members that came from a variety of very similar but distinct parent bodies. As such information comes to light, the classification system will most likely evolve.

Read more

__________________


L

Posts: 131433
Date:
RE: Meteorites
Permalink  
 




__________________


L

Posts: 131433
Date:
Permalink  
 



__________________


L

Posts: 131433
Date:
Permalink  
 


To determine whether a stone is a meteorite or something from the earth, test its magnetism, specific weight and nickel containment. Here we show you a simple nickel analysis of a sample of the meteorite NWA869. As the test is not very sensitive, the result is a bit hard to see, but good enough to say it contains nickel.

__________________


L

Posts: 131433
Date:
Permalink  
 



__________________


L

Posts: 131433
Date:
Permalink  
 



__________________


L

Posts: 131433
Date:
Permalink  
 



__________________


L

Posts: 131433
Date:
Permalink  
 


The OU's Victoria Pearson talks to Documentary about a meteorite from Mars.

__________________
«First  <  1 2 3 4 5  >  Last»  | Page of 5  sorted by
Quick Reply

Please log in to post quick replies.



Create your own FREE Forum
Report Abuse
Powered by ActiveBoard