# A sudden signal flare reveals the hidden partner behind fast radio bursts

**URL:** <https://www.cax.do/t/topic/1052>\
**Category:** News\
**Created:** [2026 年1 月 28 日 14:33 UTC](https://www.cax.do/t/topic/1052 "2026-01-28T14:33:37Z")\
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作者： ![system](https://www.cax.do/uploads/default/original/2X/7/778bde4720104aa3bc077ba8018d2f5e546c3682.png) [@system](https://www.cax.do/u/system)\
发布日期： [2026 年1 月 28 日 14:33 UTC](https://www.cax.do/t/topic/1052/1 "2026-01-28T14:33:37Z")

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Originally published at: [A sudden signal flare reveals the hidden partner behind fast radio bursts – RSS News](https://rss.cax.do/a-sudden-signal-flare-reveals-the-hidden-partner-behind-fast-radio-bursts/)

A repeating fast radio burst has just given up one of its biggest secrets. Long-term observations revealed a rare signal flare caused by plasma likely ejected from a nearby companion star. This shows the burst source isn’t alone, but part of a binary system. The finding strengthens the case that magnetars interacting with stellar companions can generate repeating cosmic flashes.​A repeating fast radio burst has just given up one of its biggest secrets. Long-term observations revealed a rare signal flare caused by plasma likely ejected from a nearby companion star. This shows the burst source isn’t alone, but part of a binary system. The finding strengthens the case that magnetars interacting with stellar companions can generate repeating cosmic flashes. Top Technology News — ScienceDaily​[Read More](https://www.sciencedaily.com/releases/2026/01/260127112135.htm)