%PDF-1.7
%
76 0 obj
<>
endobj
43 0 obj
<>
endobj
37 0 obj
<>stream
application/pdf
Science Journals — AAAS
2019-04-15T15:46:37+08:00
Arbortext Advanced Print Publisher 9.1.440/W Unicode
2019-04-25T22:53:41-07:00
2019-04-25T22:53:41-07:00
Acrobat Distiller 10.1.16 (Windows)
uuid:da6c0ce4-a912-4263-9f8d-e913c6d11456
uuid:882861ad-1dd2-11b2-0a00-b00068938dff
endstream
endobj
1 0 obj
<>
endobj
6 0 obj
<>
endobj
38 0 obj
<>/ExtGState<>/Font<>/ProcSet[/PDF/Text]/XObject<>>>/Rotate 0/Thumb 77 0 R/Type/Page>>
endobj
5 0 obj
<>/ExtGState<>/Font<>/ProcSet[/PDF/Text/ImageC]/Properties<>/XObject<>>>/Rotate 0/Thumb 7 0 R/Type/Page>>
endobj
39 0 obj
<>/ExtGState<>/Font<>/ProcSet[/PDF/Text/ImageC]/Properties<>/XObject<>>>/Rotate 0/Thumb 97 0 R/Type/Page>>
endobj
40 0 obj
<>/ExtGState<>/Font<>/ProcSet[/PDF/Text]/XObject<>>>/Rotate 0/Thumb 114 0 R/Type/Page>>
endobj
144 0 obj
<>/ProcSet[/PDF/Text/ImageC]/XObject<>>>/Type/Page>>
endobj
145 0 obj
<>/ProcSet[/PDF/Text]>>/Type/Page>>
endobj
165 0 obj
[167 0 R 168 0 R 169 0 R]
endobj
166 0 obj
<>stream
BT
/T1_0 1 Tf
6 0 0 6 79 668 Tm
(PERMISSIONS)Tj
ET
BT
0 0 1 rg
/T1_1 1 Tf
8 0 0 8 187 666 Tm
(http://www.sciencemag.org/help/reprints-and-permissions)Tj
ET
BT
/T1_1 1 Tf
8 0 0 8 193.38391 128 Tm
(Terms of Service)Tj
0 g
-15.17299 0 Td
(Use of this article is subject to the )Tj
ET
72 114 m
521 114 l
0 0 m
S
BT
ET
BT
/T1_1 1 Tf
8 0 0 8 100.45605 77.99991 Tm
( is a registered trademark of AAAS.)Tj
/T1_2 1 Tf
-3.55701 0 Td
(Science)Tj
/T1_1 1 Tf
0 1 TD
(licensee American Association for the Advancement of Science. No claim t\
o original U.S. Government Works. The title )Tj
0 1.00001 TD
(Science, 1200 New York Avenue NW, Washington, DC 20005. 2017 \251 The Au\
thors, some rights reserved; exclusive )Tj
3.83501 1 Td
(\(print ISSN 0036-8075; online ISSN 1095-9203\) is published by the Amer\
ican Association for the Advancement of)Tj
/T1_2 1 Tf
-3.83501 0 Td
(Science )Tj
ET
BT
/T1_1 1 Tf
0 -8 8 0 575 320.64813 Tm
(on April 25, 2019)Tj
-0.278 0 Td
( )Tj
0 0 1 rg
-13.50598 0 Td
(http://science.sciencemag.org/)Tj
0 g
-8.11398 0 Td
(Downloaded from )Tj
ET
endstream
endobj
162 0 obj
<>
endobj
149 0 obj
<>
endobj
163 0 obj
<>
endobj
167 0 obj
<>
endobj
168 0 obj
<>
endobj
169 0 obj
<>
endobj
172 0 obj
<>
endobj
171 0 obj
<>
endobj
170 0 obj
<>
endobj
160 0 obj
[173 0 R 174 0 R 175 0 R 176 0 R 177 0 R 178 0 R 179 0 R 180 0 R]
endobj
161 0 obj
<>stream
q
87.5 0 0 21.75 72 662.25 cm
/Im0 Do
Q
BT
/T1_0 1 Tf
10 0 0 10 72 611.99997 Tm
(spectroscopy)Tj
0 1 TD
(The surface composition of asteroid 162173 Ryugu from Hayabusa2 near-inf\
rared)Tj
ET
BT
/T1_1 1 Tf
8 0 0 8 72 550.99982 Tm
(Yoshikawa, S. Watanabe and Y. Tsuda)Tj
T*
(Y. Shimaki, N. Hirata, A. Yamaguchi, N. Ogawa, F. Terui, T. Yamaguchi, Y\
. Takei, T. Saiki, S. Nakazawa, S. Tanaka, M. )Tj
0 1.00001 TD
(Morota, S. Kameda, H. Sawada, C. Honda, M. Yamada, H. Suzuki, K. Yoshiok\
a, M. Hayakawa, K. Ogawa, Y. Cho, K. Shirai,)Tj
0 1 TD
(Y. Takagi, K. Matsumoto, T. Kouyama, Y. Yokota, E. Tatsumi, N. Sakatani,\
Y. Yamamoto, T. Okada, S. Sugita, R. Honda, T. )Tj
0 1.00001 TD
(Barucci, D. Perna, E. Palomba, A. Galiano, K. Tsumura, T. Osawa, M. Koma\
tsu, A. Nakato, T. Arai, N. Takato, T. Matsunaga,)Tj
0 1 TD
(Senshu, N. Hirata, T. Hiroi, C. Pilorget, R. Brunetto, F. Poulet, L. Riu\
, J.-P. Bibring, D. Takir, D. L. Domingue, F. Vilas, M. A. )Tj
T*
(K. Kitazato, R. E. Milliken, T. Iwata, M. Abe, M. Ohtake, S. Matsuura, T\
. Arai, Y. Nakauchi, T. Nakamura, M. Matsuoka, H.)Tj
ET
BT
/T1_1 1 Tf
8 0 0 8 181.83997 504.99997 Tm
(originally published online March 19, 2019)Tj
-13.73 0 Td
(DOI: 10.1126/science.aav7432)Tj
5.50301 1 Td
( \(6437\), 272-275.)Tj
/T1_0 1 Tf
-1.668 0 Td
(364)Tj
/T1_2 1 Tf
-3.83501 0 Td
(Science\240)Tj
ET
BT
/T1_1 1 Tf
8 0 0 8 145.45605 376.99963 Tm
(, this issue p. 268, p. 272, p. 252; see also p. 230)Tj
/T1_2 1 Tf
-3.55701 0 Td
(Science)Tj
/T1_1 1 Tf
-3.125 1 Td
(understand the samples collected by Hayabusa2, which are expected to arr\
ive on Earth in December 2020.)Tj
0 1.00001 TD
(formed by reaccumulation of rubble ejected by impact from a larger aster\
oid. These results provide necessary context to)Tj
0 1 TD
(surface colors and combined results from all three papers to constrain t\
he asteroid's formation process. Ryugu probably )Tj
33.73796 1.00001 Td
( describe Ryugu's geological features and)Tj
/T1_2 1 Tf
-2.168 0 Td
(et al.)Tj
/T1_1 1 Tf
-31.56996 0 Td
(compared Ryugu with known types of carbonaceous meteorite. Sugita )Tj
10.78301 1 Td
( used near-infrared spectroscopy to find ubiquitous hydrated minerals on\
the surface and)Tj
/T1_2 1 Tf
-2.168 0 Td
(et al.)Tj
/T1_1 1 Tf
-8.61501 0 Td
(collection. Kitazato )Tj
T*
(formed into a spinning-top shape during a prior period of rapid spin. Th\
ey also identified suitable landing sites for sample )Tj
7.004 1.00001 Td
( measured the asteroid's mass, shape, and density, showing that it is a \
''rubble pile'' of loose rocks,)Tj
/T1_2 1 Tf
-2.168 0 Td
(et al.)Tj
/T1_1 1 Tf
-4.836 0 Td
(Watanabe )Tj
T*
(carbonaceous asteroid 162173 Ryugu, at which the spacecraft arrived in J\
une 2018 \(see the Perspective by Wurm\). )Tj
T*
(Earth for laboratory analysis. Three papers in this issue describe the H\
ayabusa2 team's study of the near-Earth)Tj
0 1.00001 TD
(Japanese mission Hayabusa2 is designed to collect samples directly from \
the surface of an asteroid and return them to )Tj
3.125 1 Td
(Asteroids fall to Earth in the form of meteorites, but these provide lit\
tle information about their origins. The)Tj
/T1_0 1 Tf
-3.125 1.00001 Td
(Hayabusa2 at the asteroid Ryugu)Tj
ET
BT
/T1_0 1 Tf
6 0 0 6 79 311 Tm
(ARTICLE TOOLS)Tj
ET
BT
0 0 1 rg
/T1_1 1 Tf
8 0 0 8 187 309 Tm
(http://science.sciencemag.org/content/364/6437/272)Tj
ET
BT
0 g
/T1_0 1 Tf
6 0 0 6 79 268.99997 Tm
(MATERIALS)Tj
T*
(SUPPLEMENTARY )Tj
ET
BT
0 0 1 rg
/T1_1 1 Tf
8 0 0 8 187 273 Tm
(http://science.sciencemag.org/content/suppl/2019/03/18/science.aav7432.D\
C1)Tj
ET
BT
0 g
/T1_0 1 Tf
6 0 0 6 79 226.99997 Tm
(CONTENT)Tj
T*
(RELATED )Tj
ET
BT
0 0 1 rg
/T1_1 1 Tf
8 0 0 8 187 214.99994 Tm
(http://science.sciencemag.org/content/sci/364/6437/230.full)Tj
0 1 TD
(http://science.sciencemag.org/content/sci/364/6437/268.full)Tj
0 1.00001 TD
(http://science.sciencemag.org/content/sci/364/6437/eaaw0422.full)Tj
ET
BT
0 g
/T1_0 1 Tf
6 0 0 6 79 191 Tm
(REFERENCES)Tj
ET
BT
0 0 1 rg
/T1_1 1 Tf
8 0 0 8 187 180.99997 Tm
(http://science.sciencemag.org/content/364/6437/272#BIBL)Tj
0 g
0 1 TD
(This article cites 34 articles, 2 of which you can access for free)Tj
ET
BT
0 0 1 rg
/T1_1 1 Tf
8 0 0 8 193.38391 128 Tm
(Terms of Service)Tj
0 g
-15.17299 0 Td
(Use of this article is subject to the )Tj
ET
72 114 m
521 114 l
0 0 m
S
BT
ET
BT
/T1_1 1 Tf
8 0 0 8 100.45605 77.99991 Tm
( is a registered trademark of AAAS.)Tj
/T1_2 1 Tf
-3.55701 0 Td
(Science)Tj
/T1_1 1 Tf
T*
(licensee American Association for the Advancement of Science. No claim t\
o original U.S. Government Works. The title )Tj
0 1.00001 TD
(Science, 1200 New York Avenue NW, Washington, DC 20005. 2017 \251 The Au\
thors, some rights reserved; exclusive )Tj
3.83501 1 Td
(\(print ISSN 0036-8075; online ISSN 1095-9203\) is published by the Amer\
ican Association for the Advancement of)Tj
/T1_2 1 Tf
-3.83501 0 Td
(Science )Tj
ET
BT
/T1_1 1 Tf
0 -8 8 0 575 320.64813 Tm
(on April 25, 2019)Tj
-0.278 0 Td
( )Tj
0 0 1 rg
-13.50598 0 Td
(http://science.sciencemag.org/)Tj
0 g
-8.11398 0 Td
(Downloaded from )Tj
ET
endstream
endobj
164 0 obj
<>/Filter/FlateDecode/Height 87/Length 19684/Name/X/Subtype/Image/Type/XObject/Width 350>>stream
HyTS߽Ia
"6p\P縠x:Z.Suk:8ud,EԺУ:xtSVk9@na}/ Ҟ6Gy@{_rcL"bFSgjz"UH}>2Z
5f @a,uWP24
jѨ\i-~==Op(rw]EQڇMyƧH4E5(HQ_-*P1.#*kb"f_+XA¾ՆK$FxUFJeFq {vdcg8ZS#3_kX `9'p (3u_Od}uvn|TSI#
!y 3|].Fh{U_JA-M0bD22}[-(U~[yTk|H mL;ƶc 0X ?1Ar?oƀU]C:/^ّ,7(a"Gq?b#QUaS L6)$Hm[ANc tPĎvURl2!VV{^e(^I9Dã3l]]\3$!i;v{?.Ҕ}31,ER[^k4Nok#b7fIȐy`au^GUĉ
W&\y,$d<|rD;VӪn>Mј[Mi#DQ LY2Cme#BV~2`ls~s W&
=xAJE^dɡ>S=`_dgk+gqaنKgbK=E[> @AQbg(