posted on Jan, 21 2013 @ 09:35 AM
I don't know what the three dots are, but the squares associated with them are probably just a JPEG compression artifact from the scan -- what's
called a 'blocking artifact".
Contrasting colors like that against a homogeneous field of color (the dots against the black sky) will create artifacts of 8x8 blocks of pixels. If
you look at the squares, you can see they are made up of three 8x8 blocks of pixels.
This artifact occurs due to JPEG compression, When the JPEG compression algorithm attempts to compress a file, it interpolates ("guesses") at the
color of pixels based on that pixel and the neighboring pixels. It does this interpolation in 8x8 blocks of pixels.
When a homogeneous filed of colored pixels (the black sky) has a contrasting pixel interrupting that homogenous filed (the dots), the JPEG algorithm
gets a bit confused, resulting in this "Blocking artifact".
...As for the dots themselves, they could be anything from specs of the original film emulsion, to a reflection when the image was taken, to debris on
the scan, to stars, to flying craft in the sky.
edit on 1/21/2013 by Soylent Green Is People because: (no reason given)