On the night of Oct. 5 to 6, 1923, Edwin Hubble discovered a new star — and revealed the utter vastness of the universe. Hubble was looking at the cosmos with the 100-inch Hooker telescope at the ...
When light from a more distant galaxy passes through this warped space, its path curves. When the alignment is just right, that background galaxy's light is distorted into arcs or rings. The effect ...
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