A strange signal from deep space has been detected every 22 minutes for more than 30 years. Scientists have no idea what is causing it.

Tech Insider
An illustration shows a neurton star emiting beams of energy, while orange magnetic field lines run from one of its poles to the next.
An artist's impression of a magnetar, a dying neutron star. Scientists think they've found a pulsating star that defies the physics of stars.

ICRAR

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