Magnetar #4_ICRAR (IMAGE) International Centre for Radio Astronomy Research Caption An artist’s impression of the ultra-long period magnetar. The object has emitted a five-minute pulse of radio wavelength energy for at least the last 33 years. Credit Credit: ICRAR Usage Restrictions n/a License Original content Disclaimer: AAAS and EurekAlert! are not responsible for the accuracy of news releases posted to EurekAlert! by contributing institutions or for the use of any information through the EurekAlert system.