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 Signaling

Site Tools

  • AAAS
  • Subscribe
  • Feedback

Site Search

Search Advanced

Science 31 January 1997:
Vol. 275. no. 5300, pp. 626 - 627
DOI: 10.1126/science.275.5300.626
Prev | Table of Contents | Next

Perspectives

Paul Hewett, Stephen Warren

Most of the universe is dark matter, but the actual nature of this matter is unknown. Gravitational lensing--the bending of light from distant stars by matter--may offer some clues. As Hewett and Warren discuss in their Perspective, recent observations of gravitational microlensing by compact masses are leading to a better understanding of how the universe is populated by matter in our own galaxy and elsewhere.

P. Hewett is at the Institute of Astronomy, University of Cambridge, Madingley Road, Cambridge CB3 0HA, UK. E-mail: phewett{at}ast.cam.ac.uk. S. Warren is at the Department of Physics, Imperial College of Science and Technology, Prince Consort Road, London, SW7 2BZ, UK. E-mail: s.j.warren{at}ic.ac.uk

Read the Full Text

ADVERTISEMENT
Click Me!

ADVERTISEMENT
Click Me!

To Advertise     Find Products

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