Latest dark matter searches leave scientists empty-handed
Physicists ponder possibilities for bulk of universe’s mass

DARK GRAVITY In this cluster of galaxies, the location of dark matter is shown in blue. Scientists indirectly detected this dark matter through its gravitational influence, which bends and distorts the light of galaxies in the background. So far, all efforts to directly detect particles of the invisible matter have fallen flat.
NASA, ESA, D. Harvey/École Polytechnique Fédérale de Lausanne, R. Massey/Durham University, HST Frontier Fields
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