"The dark matter interpretation of the 3.5-keV line is inconsistent with blank-sky observations", Science Vol. 367, Issue 6485, pp. 1465-1467 (2020), Claimed that there is no peak at 3.5 keV in the background spectra.
"Detection of Cross-Correlation between Gravitational Lensing and γ Rays", Phys. Rev. Lett. 124, 101102(2020), Observed a correlation between gamma rays and weak lensing mass distribution. It seems that blazers dominantly cause this correlation. Dark matter interpretation is not clear.
"Search for the rare decay !" → $%&&̅ at J-PARC KOTO experiment", Presentation at KAON2019 conference by Satoshi Shinohara. 4 events are seen for K_L --> Pi0+nu,nubar channel. BSM ? Need to be checked more.
"Annual modulations from secular variations: relaxing DAMA?", arXiv:2002.00459, speculation that DAMA annual modulation may be due to the way analyzing the background data. Maybe not from DM signal. Interesting !
"Early-type Host Galaxies of Type Ia Supernovae. II. Evidence for Luminosity Evolution in Supernova Cosmology", arXiv:1912.04903, A team of Yonsei U. led by Young-Wook Lee claims that dark energy is not real ! But the data are questioned.
"Strongly baryon-dominated disk galaxies at the peak of galaxy formation ten billion years ago", R. Genzel et al., Nature 543, 397 (2019), Dark Matter in early Universe shows different rotation curve !
"Light Dark Matter Search with Ionization Signals in XENON1T", PRL123, 251801 (2019), 22 ton day data. New limits to DM-nucleus scattering for 3–6 GeV , DM-electron scattering for > 30 MeV, and dark photons and axionlike particles for 0.186–1 keV.