Hypothesis: The radio and X-ray pulses occur at the same time at the star but the interstellar media transmits radio and X-rays at a slightly different rates so the X-ray and radio pulses are out of phase by the time they reach the earth.
Could this be a signal from an alien civilization? Has anyone tried to decode it?<p>(I know it sounds ridiculous but that's the premise behind SETI, right? And we really should keep an open mind with these kind of things)