Hello Alma.Innovadora,
Did you take these photos yourself?
Having no way to zoom in, i'll comment just the photo on the right side, the one from 2008.
If you look at the object, it has a triangular shape. Now if you look at the lights in the building, you will see that they have all exactly the same shape. This means that the object is a point-source (A star? Venus? A plane?) and its shape comes from an aberration in the optics system of the camera, or maybe from the shaking of the camera during a relatively not too short exposure.
Now if you look at the two small picture at the left in the bottom (they are the same with different contrasts) you will notice that it's a circular spot with an elongation to the left because the camera moved to the right during exposure. So it is not an elongated object as it seems to be. For the zoom in the right and up corner, one needs to zoom other point-sources from the same image to compare. Zooming a lonely spot doesn't mean nothing since it could be just the response of the optics + detector.
Edit : now with the second image (the zooms) you can see that image 1 and 2 (from the left) are identical to image 4 with the extension to the left due to the exposure time+movement of the camera (or the object?). The zoom itself (image 4) have to be done on the entire image (with the buildings, the street lights etc.)