SpaceGamma rays from the sun are acting weird and nobody knows why A survey of the sun’s radiation turned up two surprises: a dip in low-energy gamma rays, and far more high-energy gamma rays than predicted. And nobody knows why News
SpaceAncient black holes ruled out as source of all dark matter One way to solve the dark matter problem is to chalk it up to black holes formed moments after the big bang, but they can’t account for all the dark matter News