IXPE observes magnetar 1E 1547‑5408 for over 140 hours in 2025

Scientists Make Groundbreaking Discovery with NASA's IXPE Spacecraft

In a significant breakthrough, researchers using NASA's Imaging X-ray Polarimetry Explorer (IXPE) have conducted an extensive observation of the magnetar 1E 1547-5408, spanning over 140 hours between March and April 2025. The findings from this prolonged observation period may have provided the first direct evidence of a phenomenon predicted by physicists for nearly a century. The magnetar, a highly magnetized neutron star, was the focal point of the IXPE's observation, which aimed to shed light on the behavior of empty space under extreme conditions.

The predicted phenomenon, known as "vacuum birefringence," suggests that empty space can exhibit a property similar to birefringence, where the polarization of light is affected by the presence of a magnetic field. This effect, theorized by physicist George Gamow in the 1930s, has been a topic of interest in the physics community for decades. The IXPE's advanced imaging capabilities allowed scientists to detect the faint X-ray signals emitted by the magnetar, providing a unique opportunity to study the behavior of empty space under extreme conditions.

While the results of the IXPE's observation are still being analyzed, the potential discovery of vacuum birefringence would be a significant milestone in the field of physics, confirming a long-standing theoretical prediction. The findings have the potential to deepen our understanding of the fundamental properties of space and the behavior of matter under extreme conditions.