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Science 28 June 2002:
Vol. 296. no. 5577, pp. 2317 - 2319
DOI: 10.1126/science.296.5577.2317b
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News of the Week

ASTRONOMY:
Cosmic Lenses May Be Magnifying Quasars

Robert Irion

A new study predicts that so-called gravitational lenses are unexpectedly common for the most distant bodies that astronomers see: quasars near the fringes of the visible cosmos. Up to one-third of these remote beacons might be dramatically brightened by the gravity of matter along the way stretching, splitting, and contorting their images. The finding might help resolve a puzzle about how these enigmatic denizens of the early universe came to be.

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