Note to users. If you're seeing this message, it means that your browser cannot find this page's style/presentation instructions -- or possibly that you are using a browser that does not support current Web standards. Find out more about why this message is appearing, and what you can do to make your experience of our site the best it can be.

Science 11 April 2008:
Vol. 320. no. 5873, pp. 165 - 166
DOI: 10.1126/science.320.5873.165a
Prev | Table of Contents | Next

News of the Week

PLANETARY GEOLOGY:
An Early Big Hit to Mars May Have Scarred the Planet for Life

Richard A. Kerr

Two new studies purport to ease the difficulties with the theory that a giant impact battered the young Mars.

Read the Full Text

To Advertise     Find Products

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