NASA's IXPE Captures 90-Year-Predicted Vacuum Effect in 140-Hour Magnetar Study
Updated
Updated · NASA · Aug 7
NASA's IXPE Captures 90-Year-Predicted Vacuum Effect in 140-Hour Magnetar Study
1 articles · Updated · NASA · Aug 7
Summary
More than 140 hours of IXPE observations of magnetar 1E 1547-5408 may have recorded empty space behaving as physicists predicted nearly 90 years ago, marking a possible first direct observation.
The data came from observations made between March and April 2025 by NASA's Imaging X-ray Polarimetry Explorer, which studies X-ray polarization from extreme cosmic objects.
1E 1547-5408 is a magnetar — a rare neutron star whose magnetic field is about a trillion times stronger than the strongest permanent magnets built on Earth — making it a prime target for testing the effect.
The result, if confirmed, would give rare observational support to long-standing predictions about how a vacuum behaves in ultra-strong magnetic fields.
Could the shockingly high X-ray polarization from 1E 1547-5408 be an illusion caused by unknown magnetosphere plasma rather than the vacuum itself?
What happens to our understanding of the universe when a magnetar proves that a perfect vacuum can manipulate light like a prism?
If extreme magnetic fields change how light travels through empty space, what other invisible cosmic forces are secretly bending our view of reality?
Record-Breaking 80% X-Ray Polarization in Magnetar 1E 1547.0-5408: First Direct Evidence for Vacuum Birefringence from IXPE’s Landmark Observations
Overview
In a groundbreaking campaign, scientists used NASA's IXPE, NICER, and CSIRO's Murriyang telescope to observe the magnetar 1E 1547.0-5408, revealing X-ray polarization nearly three times higher than seen in similar objects. This surprising result is explained by vacuum birefringence, where the magnetar's ultra-strong magnetic fields polarize the vacuum, acting like a cosmic prism and boosting the polarization of light. Coordinated radio observations showed the magnetar's axes are nearly aligned with our view, reducing signal loss. These findings, made possible by advanced calibration and in-orbit techniques, provide strong evidence for quantum effects in space that cannot be tested on Earth.