Addendum to "Neutrinos in the Cosmos": Neutrino Halos as the 25% Dark Matter

We propose to detect the presence of the Fermi-Dirac sphere of the neutrino halo of the Earth (or, of the Venus). The reaction v(Solar/UHE)+(nu) over bar (free) -> epsilon(-) + epsilon(+) has the threshold at 10(13) eV for a free neutrino of mass 0.058 eV. But a neutrino halo, as attached to a visual ordinary-matter macroscopic object, such as the Earth, the Venus, the Sun, and the stars, which accounts for five times in weight the dark-matter cosmic background neutrinos (CBv's), should have a Fermi-Dirac sphere with the fermi surface energy as high as 200 TeV. This aspect offers the possibility to detect the existence of the Fermi-Dirac sphere of a neutrino halo. We suspect that a couple of PeV neutrinos already detected at IceCube might come from the Fermi-Dirac sphere of the neutrino halo of the Earth.