The Euclid satellite released its first trove of galaxy data based on seven days of deep-field observations in three sky areas. Read More »
A symmetry violation has been observed in a particle-decay process that—together with five related decays—could shed light on the matter–antimatter imbalance in the Universe. Read More »
Researchers at the Large Hadron Collider have measured the spin parity of a charm-quark-hosting particle, offering a new test of theoretical models. Read More »
Observations of molybdenum nuclei have revealed no signs of a speculative nuclear decay called neutrinoless double-beta decay, setting a strong constraint on this process. Read More »
A comparison of neutrinos measured 1 km and 810 km from their source finds no evidence of a putative fourth neutrino flavor. Read More »
Measurements made by the JWST observatory could be used to detect photons emitted by the decay of a hypothetical form of dark matter particle known as the axion. Read More »
The scattering of a charged particle off a magnetic monopole does not imply the existence of fractional particle numbers, theorists say. Read More »
The spectrum of cosmic-ray antiprotons has been measured for a full solar cycle, which may allow a better understanding of the sources and transport mechanisms of these high-energy particles. Read More »
Researchers predict the existence of a class of particles that behave differently from those already known. Read More »
A new analysis of more than a decade’s worth of observations extends the spectrum of cosmic-ray electrons to unprecedented high energies. Read More »
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