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Einstein Ring

September 11 , 2022 834 days 1551 0
  • The Mid-Infrared Instrument (MIRI) of the James Webb Space Telescope has captured an image of an almost perfect “Einstein ring”.
  • The Einstein ring is also known as the Chwolson ring.
  • Einstein Ring phenomenon was first discovered in 1988.
  • It is a ring of light created when light from a galaxy, star or other light-emitting cosmic objects passes near a massive object before it reaches the Earth.
  • When this happens, gravitational lensing causes the light to get diverted.
  • And if the source, lens and the observing element are all in perfect alignment, this light appears as a ring.
  • So, the ring itself not a real physical structure in space.
  • But just a play of light and gravity, a result of the gravitational lensing effect.

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