planete parents: cap sur les étoiles : Forum
planete parents: cap sur les étoiles : la section astronomie de planete parents, tout sur l'astronomie et les mysteres du cosmos, forums, dossiers, enquetes, conseils





Login
Log in!
Partenaires


Sondages
Que pensez-vous de ce site ?
Excellent !
Cool
Hmm... Pas si mal
Qu'est-ce que c'est que ce site ?

info serveur

astronomie, astrophysique, espace, fusée, constellation, etoile, comete, galaxie, relativité, physique quantique, cosmologie, big bang, biologie, radioamateur, ham, théorie, chaos, thermodynamique, comète, meteor, meteorite, météorite, impact, planète, étoile, galaxie, nébuleuse, quasar, trou noir, news, technology, headlines, xoops, xoop, nuke, myphpnuke, myphp-nuke, phpnuke, SE, geek, geeks, hacker, hackers, linux, software, download, downloads, free, community, mp3, forum, forums, bulletin, board, boards, bbs, php, survey, poll, polls, kernel, comment, comments, portal, odp, open, source, opensource, FreeSoftware, gnu, gpl, license, Unix, *nix, mysql, sql, database, databases, web site, weblog, guru, module, modules, theme, themes, cms, content management




annonces

News en live
L'actualité de l'astronomie

Le Réseau M@rtien

Dernières petites annonces
No ad at the moment.

Index des forums de planete parents: cap sur les étoiles
   etoiles et galaxies
     Happy Valentine's from Stardust!
Enregistrez-vous pour poster

Par conversation | Les + récents en premier Sujet précédent | Sujet suivant | Bas
Expéditeur Conversation
epsylon
Envoyé sur :  21/2/2006 22:09
Fondateur
Inscrit le: 9/8/2005
De:
Envois: 29
Happy Valentine's from Stardust!
As part of the first Sample Processing Cycle, the keystone of the first
released particle was taken to the National Synchrotron Light Source at
Brookhaven National Laboratory in New York and examined by the far-IR
beam. The particle was shown to be definitely a cometary mineral and not
secondary debris. As part of the second Sample Processing Cycle, the
terminal particle - the particle at the end of the tract - was removed
from the keystone for further analyses on Valentine's Day. To our
surprise, we found the particle to be heart-shaped! Happy Valentine's to
the world from Stardust! I have been assured that this is the real shape
of the particle!

Heart-shaped comet particle extracted from aerogel


This particle will be embedded in sulfur first with few wafers removed
for mineralogy and petrology studies, and then the remainder of the
particle will be pressed into Au foil for isotopic studies.

During the second Sample Processing Cycle, we removed four additional Wild
2 aerogel cells with relative ease, after having made some adjustments
learned from the first Cycle. All four cells are being scanned by the
binocular microscope as well as the compound microscope to capture more
of the smaller particle tracks. More keystones, quickstones and
mircrotomes slides are being made to supply the eagerly awaiting
analysts around the world. We have also taken a sample from the largest
capture tract without removing the cell from the Wild 2 tray, to provide
definitive proof that the largest particles are from Wild 2 and are not
secondary debris.
Par conversation | Les + récents en premier Sujet précédent | Sujet suivant | Top

Enregistrez-vous pour poster
 
Connexion

Lune

Qui est en ligne
3 utilisateur(s) en ligne (dont 1 sur Forum)

Membre(s): 0
Invité(s): 3

plus...

Recherche

Article du jour

Il n'y a pas encore d'article du jour.


Sujets d'articles

la section astronomie de planete parents, tout sur l'astronomie et les mysteres du cosmos, forums, dossiers, enquetes, conseils