Particle Physics

  1. Pierre Auger Observatory
    Astronomy

    Ultrahigh energy cosmic rays come from outside the Milky Way

    The biggest cosmic ray haul ever points toward other galaxies as the source of the rays, not our own.

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  2. SDO image of sun
    Astronomy

    The sun’s strongest flare in 11 years might help explain a solar paradox

    The sun tends to release its biggest flares at the ends of solar cycles — and we might finally be able to test why.

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  3. XENON1T
    Particle Physics

    The results from a slew of experiments are in: Dark matter remains elusive

    Scientists continue the search for particles that make up the universe’s missing matter.

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  4. XENON1T
    Particle Physics

    Dark matter still remains elusive

    Scientists continue the search for particles that make up the universe’s missing matter.

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  5. two photons bounce off each other
    Particle Physics

    Normally aloof particles of light seen ricocheting off each other

    Scientists spot evidence of photons interacting at the Large Hadron Collider.

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  6. T2K experiment
    Particle Physics

    Neutrino experiment may hint at why matter rules the universe

    T2K experiment hints at an explanation for what happened to antimatter.

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  7. Juan Collar
    Particle Physics

    Neutrinos seen scattering off an atom’s nucleus for the first time

    New type of interaction confirms that neutrinos play by the rules.

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  8. illustration of new particle
    Particle Physics

    Newfound particle relies on its charm(s)

    First-of-its-kind subatomic particle is composed of two charm quarks and an up quark.

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  9. Planetary Science

    Readers intrigued by Mars’ far-out birth

    Readers sent feedback on the Red Planet's formation, jumping genes and more

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  10. Particle Physics

    Readers puzzled by proton’s properties

    Readers sent feedback on under-ice greenhouses in the Arctic, the Martian atmosphere and more.

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  11. AMS experiment
    Particle Physics

    Antiproton count hints at dark matter annihilation

    Antimatter in cosmic rays could be a sign of dark matter.

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  12. LHCb experiment
    Particle Physics

    Collider data hint at unexpected new subatomic particles

    A set of particle decay measurements could be evidence for new physics.

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