An artist's impression shows a red dwarf (left) and a white dwarf (center) closely orbiting each other. Astronomers believe the tight orbit causes the stars' magnetic fields to interact, releasing radio pulses every two hours.
Mandatory Credit: Daniëlle Futselaar/artsource.nl via CNN Newsource
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Over the past decade, scientists have detected a puzzling phenomenon: radio pulses coming from within our Milky Way galaxy that would pulse every two hours, like a cosmic heartbeat. The long radio blasts, which lasted between 30 and 90 seconds, appeared to come from the direction of the Ursa Major constellation, where the Big Dipper is located.
