Science continues to evolve as yet another state of matter has been discovered. On February 26, 2014 the creation of dropletons was announced. Original Source
Dropletons apparently behave like a mixture of solid and liquid particles and exist for only 25 picoseconds. Dropletons are as wide as 200 nanometers, about the size of the smallest bacteria, and can be seen with a conventional microscope. Dropletons join plasma and supercritical fluids as newer states of matter that have been discovered. For an extensive list of exotic states of matter check here.