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f_d t1_jb7g4dm wrote

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

The light from the galaxy, not the galaxy itself.

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WyboSF t1_jb7ik45 wrote

That’s the same thing when it comes to an image and how we are collecting the data

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f_d t1_jb7qrxa wrote

It's not the same thing as the galaxy itself moving, though. And it's much easier to understand how light can take different paths than a galaxy taking different paths. I wanted to make extra clear what was doing the traveling in the analogy.

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