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.

Site Tools

  • AAAS
  • Subscribe
  • Feedback

Site Search

Search Advanced
About the Cover

Cover Figure


COVER The collision of Deep Impact with the nucleus of Comet 9P/Tempel 1 as seen from the accompanying spacecraft. The nucleus is about 5 kilometers across, and several impact craters can be seen above the impact plume. Analysis of the debris plume by Deep Impact and dozens of telescopes worldwide showed that the nucleus had a low density and provided a view of the previously hidden interior of a comet. [Image: NASA/JPL/University of Maryland]


[Table of Contents]

ADVERTISEMENT
Click Me!

ADVERTISEMENT
Click Me!

To Advertise     Find Products

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