It looks like a planet from another solar system! Or an alien egg from a hollywood movie! It is actually just a regular egg which had a speckled pattern on it. The photo was taken and then inverted giving the beautiful blue color.
License: CC0 Public Domain
Chris Lensicle has released this “Alien Egg” image under Public Domain license. It means that you can use and modify it for your personal and commercial projects. If you intend to use an image you find here for commercial use, please be aware that some photos do require a model or a property release. Pictures featuring products should be used with care.