Contents

23 April 2004
Vol 304, Issue 5670

About The Cover

Cover image expansion

COVER A three-color image composite of the Crab Nebula in the Taurus constellation shows the filamentous remnants from a stellar explosion that occurred 950 years ago. The Crab pulsar is in the center (arrow at left); north is up and east is left. See the 531 for more on pulsars. [Image: Very Large Telescope/European Southern Observatory]