Astronomers have discovered the longest-ever cosmic radio signal, lasting nearly an hour. The unusual signal, named ASKAP J1935+2148, has been observed in three distinct modes and is believed to be coming from a highly unusual neutron star or white dwarf. Scientists are still trying to determine the source of this signal, which has stumped them due to its unique characteristics.
Source: https://www.wionews.com/science/longest-ever-cosmic-radio-signal-lasting-nearly-an-hour-likely-coming-from-769900