At http://phys.org/print322235628.html ... an ESA Herschel image of the Helix Nebula has found some interesting molecules - the OH+ molecular ion which is a requirement for water. They say the molecule exists in the burning embers of dying sun-like stars. The molecule is a positively charged combination of single oxygen and hydrogen atoms - existing in former sun like bodies.
The Herschel telescope has traced water in various parts of the universe - in star forming clouds and now in dying stars. Even in the asteroid belt within our solar system.