《科学》[Science]13年5月3日出版pdf全文

nero1981

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COVER Stylized comparison of the inner solar system (top) and
" h% S; q2 Q: DKepler-62 (bottom), a five-planet system about 1200 light-years away. Like our
' @0 `$ W  f2 A8 \8 S9 Z0 d' Bsolar system, Kepler-62 hosts two planets in its habitable zone (depicted in
, U4 j1 ^4 }8 e0 Q  a1 w# Ugreen), the region around a star where a planet could conceivably maintain
# @+ `8 r: q9 ^3 f5 {" Nliquid water on its surface. The special section beginning on page 565
4 r& \2 V$ X% q8 q2 r5 U' a: l( isummarizes what we currently know about extrasolar planets. Illustration: ) N/ m4 q: w$ D6 n# U' ?! |
NASA/Jet Propulsion Laboratory–Caltech/T. Pyle + H' V" m5 l0 B. ?8 ]! j

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