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longleaf4 t1_jbabn7a wrote

Reply to comment by blueasian0682 in James Webb Telescope captures the same galaxy at three different points in time in a single mind-boggling image by mirzavadoodulbaig

I'm confused. Wasn't Webbs' first picture taken last year? How are they 1000 days from the first pic?

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RevengencerAlf t1_jbak72r wrote

It's all one picture. Due to gravitational lensing light emitted 1000 days apart in time reached the telescope at the same time. Basically the light from the first picture took 1000 days longer to reach us because the fabric of spacetime was curved forcing it to take a longer path while light emitted 1000 days later missed that gravity source so it was able to take the short route and get here at basically the same time.

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