Early reaction to the publication of a paper by physicists at the Fermi National Accelerator Laboratory hints at the existence of a previously unknown elementary particle.  Is it the Higgs boson?  No, it is not, as Tommaso Dorigo shows, so you should be skeptical about the sensationalism this kind of thing often brings.  

 So what is it?  Well, no one knows, and that is why everyone should be impressed.