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A view through massive galaxy cluster Abell 1689, showing the characteristic arcs of gravitational lensing
Massive galaxy LRG 3-757 forms a gravitational lens for a second galaxy (blue ring) at a distance of about 11 billion light years
MACS0647-JD is a candidate for the most distant galaxy in the Universe – it can only be seen here due to the influence of a gravitational lens formed by an intervening galaxy cluster
An Einstein Cross, where a gravitational lens creates multiple images of a more distant quasar
A view through galaxy cluster RCS2 032727-132623, showing a background galaxy highly distorted by an asymmetric gravitational lens (the inset is an attempt to reimage the background galaxy by compensating for the distortion of the lens)
Gravitational lenses, which are massive galaxies or galaxy clusters that act as a magnifying glass by bending light passing them, are one of the Universe's golden gifts to astronomers. To help unlock the mysteries that might lie behind these untapped celestial resources, Zooniverse, a program of the Citizens Science Alliance, has begun the Space Warps project. It allows citizen scientists to put their skills at pattern/image recognition to use, toward finding these fugitive gravitational lenses.
Read the full article: Got eyes? Help find gravitational lenses!
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