Galaxy streak?

Does anyone know why this galaxy has what appears to be a streak in it? I’m not a scientist, but it looks interesting.

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Neat! It might be a chance overlap of a nearby galaxy (probably the blue one is closer) in front of the orange one.

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If you are referring to the darker line running across the middle, this is caused by dust in the galactic disk which blocks light in the plane of the disk, so it is particularly noticeable when a spiral galaxy is side-on to us. Here is a clearer example: