Martin Jucker
These photos may look like just beautiful abstract pieces of art but there's much more to each one then you think.
Princeton University's annual 'Art of Science' photo competition showcases the best in scientific photography and this year's entrants are pretty special.
This year's offerings included a representation of the Earth's winds, the ovary of a fruit fly and the world as seen by as photon.
Click through the slideshow for the story behind each one...