Astronomers Use Rare Ultra-Magnetic Star to Crack a Quantum Mystery

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An international team observed a magnetar known as 1E 1547.0–5408 using NASA’s Imaging X-ray Polarimetry Explorer (IXPE), leading to what could be the first detection of vacuum birefringence taking place in the magnetar’s ultra-strong magnetic field.

These findings could potentially resolve a long-standing mystery quantum mechanics.