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More unexplained signals are coming from outer space, scientists report in a new study. For only the second time ever, scientists have detected a radio signal from a distant galaxy that repeats at regular intervals.Why do radio bursts come from distant galaxies?
More 'fast radio bursts' have been detected from a distant galaxy. This one has a repeating pattern. This discovery provides an important clue to identifying the origin of these enigmatic bursts. The powerful bursts could be linked to the orbital motion of a massive star, a neutron star or a black hole.Are there enough space explosions to explain strange radio bursts?
^ Crane, Leah (15 July 2019). "There aren't enough space explosions to explain strange radio bursts". New Scientist. Retrieved 16 July 2019. ^ Ravi, Vikram (15 July 2019). "The prevalence of repeating fast radio bursts". Nature Astronomy. 3 (10): 928–931. arXiv: 1907.06619. Bibcode: 2019NatAs...3..928R. doi: 10.1038/s41550-019-0831-y.What is a fast radio burst?
Astronomers using NASA's Hubble Space Telescope have traced the locations of five brief, powerful radio blasts to the spiral arms of five distant galaxies. Called fast radio bursts (FRBs), these extraordinary events generate as much energy in a thousandth of a second as the Sun does in a year.