Astronomers have detected a signal described as a "heartbeat" from a newborn star or neutron star that is hidden within a powerful cosmic explosion. The signal is associated with a gamma-ray burst or pulsar signals, and may be related to a magnetar. The nature and origin of the "heartbeat" signal are not entirely clear, with some reports suggesting it may be connected to a neutron star or a magnetar, while one outlet mentions a separate discovery related to the star Betelgeuse.