JWST Sees the Same Galaxy From Three Different Angles Thanks to a Gravitational Lens - by BrianKoberlein
One of the great tragedies of the night sky is that we will never travel to much of what we see. We may eventually travel to nearby stars, and even distant reaches of our galaxy, but the limits of light speed and cosmic expansion make it impossible for us to travel beyond our local group. So we can only observe distant galaxies, and we can only observe them from our home in the universe.
As light from distant galaxies traverses the cosmos to reach us, its path can be deflected gravitationally along the way, known as gravitational lensing. For very distant galaxies their light is often lensed through galactic clusters closer to us and can produce multiple images. Each of these images comes from a different path of light.You can see this in a recent set of images released by the Space Telescope Science Institute.
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