Hubble Space Telescope image of the Einstein cross

Hubble Space Telescope image of the Einstein cross

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This image is part of the feature 100 Years Of Einstein
This image is part of the feature Gravitational Lenses
This image is part of the feature Hubble Views The Universe

Credit: NASA/ESA/STSCI/SCIENCE PHOTO LIBRARY

Caption: Gravitational lensing. Hubble Space Telescope image of the "Einstein cross" G2237 +0305, also known as Huchra's cross after its discoverer John Huchra. The photo shows five images; the central spot is a relatively nearby galaxy, while the four outer spots are images of a distant quasar. Light from the quasar has been bent by the gravitation field of the intervening galaxy, which acts as a giant lens, forming four images of the quasar. The quasar lies at a distance of around 8 billion light years, while the galaxy is 20 time closer at 400 million light years. Einstein proposed the effect of gravitational lensing in 1936.

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Keywords: astronomy, cosmology, einstein cross, eistein cross, g2237 +0305, gravitational, gravitational lensing, hst imagery, hubble image, huchra's cross, lensing, science, space telescope imagery

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