Rings, Arcs, Crosses, and Twins
May 01, 2022
2 minutes
by Meg Thacher
General relativity gives us a new way of looking at gravity: The mass of a star or planet or galaxy actually warps the space around it. When Albert Einstein created this theory, he realized that even light would curve around massive objects. This phenomenon is called gravitational lensing.
Dramatic Distortions
Galaxies and quasars—the brightest objects in the universe—can be “lensed” by a large galaxy or
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