Particles brought back by Hayabusa identified as from Itokawa
JAXA has been engaged in collecting and categorizing particles in the sampler container that were brought back by the asteroid explorer "HAYABUSA."
As a result of the scanning electron microscope (SEM) observations and analyses of the samples, about 1,500 grains were identified as rocky particles, and most of them were judged to be of extraterrestrial origin, and definitely from Asteroid Itokawa, after further study of the analysis results and comparison of mineral compositions.
Their size is mostly less than 10 micrometers, and handling these grains requires very special skills and techniques. JAXA is developing the necessary handling techniques and preparing the associated equipment for the initial (but more detailed) analyses of these ultra-minute particles.
* The Hayabusa sampler container consists of 2 compartments which are called as "Sample Catcher A and B.<-->
November 16, 2010