Gamma-ray pulsations reveal extreme 3.2-millisecond pulsar 3,900 light-years away

edited by Sadie Harley , reviewed by Robert Egan

This article has been reviewed according to Science X's editorial process and policies . Editors have highlighted the following attributes while ensuring the content's credibility:

Add as preferred source Test statistic (TS) maps of the 5◦ ×5◦ region centered on PSR J0435+3233 in the 0.1–500.0 GeV, constructed using events collected within the ephemeris-valid interval (EVI). Left and right panels show the on-pulse and off-pulse TS maps, respectively. Credit: Zhang et al., 2026. By analyzing the data from NASA's Fermi gamma-ray space telescope, Chinese astronomers have investigated a recently identified millisecond pulsar known as PSR J0435+3233. As a result, they found that the pulsar exhibits gamma-ray pulsations. The discovery was detailed in a paper published July 17 on the pre-print server arXiv .