Physics
Sterile neutrinos leave ghostly fingerprints on cosmos
Hypothetical particles that have been playing hide-and-seek with physicists for decades may finally be stepping into view
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Hypothetical particles that have been playing hide-and-seek with physicists for decades may finally be stepping into view
Next year, experiments will test claims of particles breaking the cosmic speed limit - but how to meld these misbehaving particles with the rest of physics?