The Galaxy Cluster CL 0024+1654

The The Hubble Space Telescope has captured a striking image of the galaxy cluster CL0024+1654 which lies some 5 billion light-years away in the constellation Pisces. The bright yellow blobs are the family of galaxies composing the cluster, each one containing as many as 100 billion stars. Their combined gravitational pull shows here an eerie prediction of Einstein's General Theory of Relativity. The cigar-shaped, blue objects on the outskirts of the cluster are all in fact a mirage of the same galaxy. This galaxy lies somewhere behind the cluster, but the combined gravity of the cluster members causes the light from this galaxy to be focused and amplified just like a telescope lens. This phenomenon is called Gravitational Lensing .

For more information on the Hubble Space Telescope, visit the website for the:

For more on Gravitational Lensing try:

  • Gravitational Lenses - a site from the University of British Columbia

  • The MPA Gravitational Lensing Group in Germany

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    Last modified: Tue Jul 22 17:30:37 EDT 1997