Infograph (IMAGE)

Ecole Polytechnique Fédérale de Lausanne

Infograph

Caption

This is an image of the first-ever foreground quasar (blue) lensing a background galaxy (red), taken with the Keck II telescope.

Credit

[Credit: Courbin, Meylan, Djorgovski, et al., EPFL/Caltech/WMKO]

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