No, this is not some glowing nebula* in the vastness of space, but mini-rainbows on dark flooring produced by those glass "bricks" people use for getting light into buildings while having a gbit of privacy. The varying thickness and different angles of the glass in the bricks act as prisms, giving this very interesting effect.*the link is actually a galaxy, not a nebula, but it looks pretty just the same. See this post at "Starts with a Bang" for a nice discussion of people confusing galaxies and nebulas why we thought we were the only galaxy in the Universe.
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