Crab pulsar beams most energetic gamma rays ever detected from a pulsar


Astrophysicists have detected pulsed gamma-ray emission from the Crab pulsar at energies far beyond what current theoretical models of pulsars can explain. With energies exceeding 100 billion electron-volts (100 GeV), the surprising gamma-ray pulses were…

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Cloaking magnetic fields — the first antimagnet


Spanish researchers have designed what they believe to be a new type of magnetic cloak, which shields objects from external magnetic fields, while at the same time preventing any magnetic internal fields from leaking outside,…

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