Astronomy: images of the Universe: Figure 19 Spot the difference: two images of the same galaxy taken 41 days apart, with the location of a supernova highlighted by the white lines in the right-hand image.

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Astronomy: images of the Universe

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Figure 19 Spot the difference: two images of the same galaxy taken 41 days apart, with the location of a supernova highlighted by the white lines in the right-hand image.

4.3 Surveying the variable Universe

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