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Science 26 May 2006:
Vol. 312. no. 5777, p. 1133
DOI: 10.1126/science.312.5777.1133
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News Focus

PLANETARY SCIENCE:
Bombardment Looking "Possible"

Richard A. Kerr

Although researchers at the symposium deadlocked over Mars's recent cratering history (see main text), they may have made progress with a related question: how cratering took place during the planet's first billion years. (Read more.)

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Science. ISSN 0036-8075 (print), 1095-9203 (online)