Dark matter is probably the most fascinating enigma of modern physics. Its evidence is onall the astrophysical scales, from the local ones, inside our galaxy, to the outer galaxies, to themasses of galaxies, to the cosmological scales [1,2]. If we consider the standard cosmological model,based on general relativity and observed families of elemental particles, dark matter is inevitable:it needs to explain the formation and stability of all observed cosmic structures. Likewise, a series ofobservations based on the brightness distance of Type Ia supernovae, the cosmic background radiation,the distribution of cosmic structures, the so-called baryonic acoustic oscillations, and other observables,clearly indicate that cosmological fluid is experiencing an accelerate expansion. The cause of this factis generally attributed to the cosmological constant or to an undefined form of dark energy that wouldaccelerate the Universe [3].Despite these macroscopic evidences, despite the fact that general relativity always receives newconfirmations (the recent discovery of gravitational waves is one of the most striking recent examples),the fundamental constituents of dark matter and obscure energy appear extremely elusive. All directand indirect research of particle with mass interacting gravitationally but not electromagnetically seemto be unsuccessful today. From a general point of view, the Standard Model of elemental particlesseems to be extremely solid without leaving room for other exotic particles. On the other hand,even modifying the so-called gravitational sector can be problematic if the alternate theories of generalrelativity do not reproduce the results of the latter, which are experimentally well-founded, at least atlocal scales [4].In this complex research framework, a recent work on the prestigious research journalPhysica Scripta, Fabrizio Tamburini of ZKM in Karlsruhe and MSC-BW in Stuttgart and IgnazioLicata of ISEM in Palermo, could represent a totally original turning point in the research landscape ofcandidates for dark matter [5].The two researchers started from the recent data reported for main sequence stars under theSloan Digital Sky Survey collaboration. For 236 of these stars, Borra and Trottier [6] exhibitedan extremely regular periodic modulation in the spectrum. Signals appear so regular that they evensuggest an intelligent source of them within the SETI program that seeks extraterrestrial civilizations.Tamburini and Licata, on the other hand, considering the theoretical characteristics of weak interactingmassive particles (WIMPs) and axions (among the major candidates for dark matter), indicate inthis modulation as clear evidence for axions. In particular, Tamburini and Licata, starting from thefrequencies observed, have established a plausible range for the mass of the axion that overlaps withthe range obtained recently from Borsanyi et al. from Lattice QCD calculations including StandardModel particles [7]. In other words, the frequency modulation observed in these 236 stars would bedue to oscillations of axions. These particles could be clustered into astrophysical structures insidestars or form the so-called ‘boson stars’ and, above all, the particles would be compatible with the