Comet 81P/Wild 2 under a microscope.
The Stardust spacecraft collected thousands of particles from comet 81P/Wild 2 and returned them to Earth for laboratory study. The preliminary examination of these samples shows that the nonvolatile portion of the comet is an unequilibrated assortment of materials that have both presolar and solar system origin. The comet contains an abundance of silicate grains that are much larger than predictions of interstellar grain models, and many of these are high-temperature minerals that appear to have formed in the inner regions of the solar nebula. Their presence in a comet proves that the formation of the solar system included mixing on the grandest scales.
Brownlee
Don
D
Department of Astronomy, University of Washington, Seattle, WA 98195, USA. brownlee@astro.washington.edu
Tsou
Peter
P
Aléon
Jérôme
J
Alexander
Conel M O'd
CM
Araki
Tohru
T
Bajt
Sasa
S
Baratta
Giuseppe A
GA
Bastien
Ron
R
Bland
Phil
P
Bleuet
Pierre
P
Borg
Janet
J
Bradley
John P
JP
Brearley
Adrian
A
Brenker
F
F
Brennan
Sean
S
Bridges
John C
JC
Browning
Nigel D
ND
Brucato
John R
JR
Bullock
E
E
Burchell
Mark J
MJ
Busemann
Henner
H
Butterworth
Anna
A
Chaussidon
Marc
M
Cheuvront
Allan
A
Chi
Miaofang
M
Cintala
Mark J
MJ
Clark
B C
BC
Clemett
Simon J
SJ
Cody
George
G
Colangeli
Luigi
L
Cooper
George
G
Cordier
Patrick
P
Daghlian
C
C
Dai
Zurong
Z
D'Hendecourt
Louis
L
Djouadi
Zahia
Z
Dominguez
Gerardo
G
Duxbury
Tom
T
Dworkin
Jason P
JP
Ebel
Denton S
DS
Economou
Thanasis E
TE
Fakra
Sirine
S
Fairey
Sam A J
SA
Fallon
Stewart
S
Ferrini
Gianluca
G
Ferroir
T
T
Fleckenstein
Holger
H
Floss
Christine
C
Flynn
George
G
Franchi
Ian A
IA
Fries
Marc
M
Gainsforth
Z
Z
Gallien
J-P
JP
Genge
Matt
M
Gilles
Mary K
MK
Gillet
Philipe
P
Gilmour
Jamie
J
Glavin
Daniel P
DP
Gounelle
Matthieu
M
Grady
Monica M
MM
Graham
Giles A
GA
Grant
P G
PG
Green
Simon F
SF
Grossemy
Faustine
F
Grossman
Lawrence
L
Grossman
Jeffrey N
JN
Guan
Yunbin
Y
Hagiya
Kenji
K
Harvey
Ralph
R
Heck
Philipp
P
Herzog
Gregory F
GF
Hoppe
Peter
P
Hörz
Friedrich
F
Huth
Joachim
J
Hutcheon
Ian D
ID
Ignatyev
Konstantin
K
Ishii
Hope
H
Ito
Motoo
M
Jacob
Damien
D
Jacobsen
Chris
C
Jacobsen
Stein
S
Jones
Steven
S
Joswiak
David
D
Jurewicz
Amy
A
Kearsley
Anton T
AT
Keller
Lindsay P
LP
Khodja
H
H
Kilcoyne
A L David
AL
Kissel
Jochen
J
Krot
Alexander
A
Langenhorst
Falko
F
Lanzirotti
Antonio
A
Le
Loan
L
Leshin
Laurie A
LA
Leitner
J
J
Lemelle
L
L
Leroux
Hugues
H
Liu
Ming-Chang
MC
Luening
K
K
Lyon
Ian
I
Macpherson
Glen
G
Marcus
Matthew A
MA
Marhas
Kuljeet
K
Marty
Bernard
B
Matrajt
Graciela
G
McKeegan
Kevin
K
Meibom
Anders
A
Mennella
Vito
V
Messenger
Keiko
K
Messenger
Scott
S
Mikouchi
Takashi
T
Mostefaoui
Smail
S
Nakamura
Tomoki
T
Nakano
T
T
Newville
M
M
Nittler
Larry R
LR
Ohnishi
Ichiro
I
Ohsumi
Kazumasa
K
Okudaira
Kyoko
K
Papanastassiou
Dimitri A
DA
Palma
Russ
R
Palumbo
Maria E
ME
Pepin
Robert O
RO
Perkins
David
D
Perronnet
Murielle
M
Pianetta
P
P
Rao
William
W
Rietmeijer
Frans J M
FJ
Robert
François
F
Rost
D
D
Rotundi
Alessandra
A
Ryan
Robert
R
Sandford
Scott A
SA
Schwandt
Craig S
CS
See
Thomas H
TH
Schlutter
Dennis
D
Sheffield-Parker
J
J
Simionovici
Alexandre
A
Simon
Steven
S
Sitnitsky
I
I
Snead
Christopher J
CJ
Spencer
Maegan K
MK
Stadermann
Frank J
FJ
Steele
Andrew
A
Stephan
Thomas
T
Stroud
Rhonda
R
Susini
Jean
J
Sutton
S R
SR
Suzuki
Y
Y
Taheri
Mitra
M
Taylor
Susan
S
Teslich
Nick
N
Tomeoka
Kazu
K
Tomioka
Naotaka
N
Toppani
Alice
A
Trigo-Rodríguez
Josep M
JM
Troadec
David
D
Tsuchiyama
Akira
A
Tuzzolino
Anthony J
AJ
Tyliszczak
Tolek
T
Uesugi
K
K
Velbel
Michael
M
Vellenga
Joe
J
Vicenzi
E
E
Vincze
L
L
Warren
Jack
J
Weber
Iris
I
Weisberg
Mike
M
Westphal
Andrew J
AJ
Wirick
Sue
S
Wooden
Diane
D
Wopenka
Brigitte
B
Wozniakiewicz
Penelope
P
Wright
Ian
I
Yabuta
Hikaru
H
Yano
Hajime
H
Young
Edward D
ED
Zare
Richard N
RN
Zega
Thomas
T
Ziegler
Karen
K
Zimmerman
Laurent
L
Zinner
Ernst
E
Zolensky
Michael
M