That's right, it's a phenomenon called gravitational lensing. We can even take advantage it to spot things very far away—and long ago—because the lenses can function as magnifiers for objects behind them: en.wikipedia.org/wiki/WHL0137...
That's right, it's a phenomenon called gravitational lensing. We can even take advantage it to spot things very far away—and long ago—because the lenses can function as magnifiers for objects behind them: en.wikipedia.org/wiki/WHL0137...
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