science

NASA's Hubble Space Telescope reveals light warped by 'immense gravity' of galaxy cluster


As the light from galaxies far behind Abell 370 passes through the cluster, the cluster’s gravity bends and magnifies the light much like a lens.

The bizarre effect is known as gravitational lensing and astronomers have used it to observed galaxies otherwise obscured from view.

NASA said: “Abell 370 is one of the first galaxy clusters in which astronomers saw the effects of gravitational lensing.

“This view from Hubble, captured with the Advanced Camera for Surveys, uncovers far more detail in the numerous streaks and arcs scattered throughout Abell 370 than telescopes on the ground could provide.





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