Are pulsars the key to finding dark matter?

Ah, dark matter particles, what could you be? The answer still eludes us, and astronomers keep trying new ideas to find them. A new paper in Physical Review Letters suggests that if dark matter is made of axions, we might ...

Ionic crystal generates molecular ions upon positron irradiation

The positron, the antiparticle of the electron, has the same mass and charge as that of an electron but with the sign flipped for the charge. It is an attractive particle for scientists because the use of positrons has led ...

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