Its Own Reflection...

Janus, from which we get "January"

Not so salacious as you'll see by the link below (since neutrinos are the rage in the news of late):

"Are neutrinos their own antiparticles? Clear proof would come from observing a neutrinoless double-beta decay—the simultaneous transmutation of two neutrons into two protons, without the emission of neutrinos. Looking for such events, which have never been seen before, is a primary goal of experiments at the newly commissioned Enriched Xenon Observatory (EXO)."

Counting Down to Zero Neutrinos: Observation of Two-Neutrino Double-Beta Decay in ¹³⁶Xe with the EXO-200 Detector, N. Ackerman et al. (EXO Collaboration), Phys. Rev. Lett. 107, 212501 (2011)Published November 17, 2011