Yes, but what are neutrinos for?

But for hundreds of scientists long in their pursuit, witnessing these faint flickers over the last two years has been a cause for celebration, because they mark the arrival of ghostly messengers called neutrinos from the far - and incredibly violent - corners of the universe.

http://www.bostonglobe.com/ideas/2013/12/01/yes-but-what-are-neutrinos-for/JgRhr7V7qXow9nhgRsdzuO/story.html