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 1 August 1997:
Vol. 277. no. 5326, pp. 638 - 639
DOI: 10.1126/science.277.5326.638a
Prev | Table of Contents | Next

Research News

PLANETARY SCIENCE:
Possible Glimpse of Earth-like Geology In Mars Rock

Richard A. Kerr

One small rock on the vast, rusty desert of Mars has riveted the attention of geologists on Earth. Mars Pathfinder's rover, Sojourner, has found that the rock, dubbed Barnacle Bill, contains far more of the ubiquitous substance silica than any known rock in the solar system outside Earth. That's intriguing because high-silica rocks on Earth generally come from volcanic eruptions fueled by the sinking of plates of surface rock into the planet's interior, a process thought to be uniquely terrestrial.

Read the Full Text

To Advertise     Find Products

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