科学家们将神秘无线电信号的来源精确定位到北斗七星中相互作用的恒星。 Scientists pinpoint origin of mysterious radio signals to interacting stars in Big Dipper.

科学家们追踪到神秘的无线电信号，该信号于 2015 年首次被发现，指向北斗七星座中的一个双星系统。 Scientists have traced mysterious radio signals, first detected in 2015, to a binary star system in the Big Dipper constellation. 信号持续数秒到数分钟，来自相互环绕的红矮星和白矮星。 The signals, lasting from seconds to minutes, originate from a red dwarf and white dwarf star orbiting each other. 这一发现不同于典型的快速射电暴，后者仅持续几毫秒。 This discovery differs from typical fast radio bursts, which last only milliseconds. 研究人员认为，这些脉冲是由恒星磁场相互作用引起的。 Researchers believe the pulses are caused by the stars' magnetic fields interacting. 这一突破发表在《自然天文学》上，为这些神秘宇宙信号的起源提供了新的视角。 This breakthrough, published in Nature Astronomy, sheds new light on the origins of these enigmatic cosmic signals.