![A mysterious interstellar radio signal has been blinking on and off every 22 minutes for over 30 years A mysterious interstellar radio signal has been blinking on and off every 22 minutes for over 30 years](https://images.theconversation.com/files/535259/original/file-20230703-257103-z65saa.png?ixlib=rb-1.1.0&rect=0%2C125%2C2841%2C1418&q=45&auto=format&w=1356&h=668&fit=crop)
A mysterious interstellar radio signal has been blinking on and off every 22 minutes for over 30 years
![Unknown space object beaming out radio signals every 18 minutes remains a mystery | Astronomy | wqow.com Unknown space object beaming out radio signals every 18 minutes remains a mystery | Astronomy | wqow.com](https://bloximages.newyork1.vip.townnews.com/wqow.com/content/tncms/assets/v3/editorial/3/ef/3ef9cd0a-d03c-5d66-a7a5-9c894fca9778/61f1d0622bdcb.image.jpg?resize=1396%2C786)
Unknown space object beaming out radio signals every 18 minutes remains a mystery | Astronomy | wqow.com
![Astronomers spot record-breaking radio signal that took 8 billion years to reach Earth: "Mind-blowing" - CBS News Astronomers spot record-breaking radio signal that took 8 billion years to reach Earth: "Mind-blowing" - CBS News](https://assets1.cbsnewsstatic.com/hub/i/r/2022/07/15/72b521d2-9902-4e3c-8214-7333d444674f/thumbnail/1200x630/ea8218b2a8c0818d5d6dbe099c73a8e7/low-res-mit-clearfrb-01-press-jpg.png?v=170b469460f9b5b4a2670b02bb591e2d)
Astronomers spot record-breaking radio signal that took 8 billion years to reach Earth: "Mind-blowing" - CBS News
![Radio signals from space: SETI weighs in on alien origin of Fast Radio Bursts | Science | News | Express.co.uk Radio signals from space: SETI weighs in on alien origin of Fast Radio Bursts | Science | News | Express.co.uk](https://cdn.images.express.co.uk/img/dynamic/151/590x/1168650_1.jpg)
Radio signals from space: SETI weighs in on alien origin of Fast Radio Bursts | Science | News | Express.co.uk
![Mysterious radio signal from space repeating every 16 days - Boston News, Weather, Sports | WHDH 7News Mysterious radio signal from space repeating every 16 days - Boston News, Weather, Sports | WHDH 7News](https://whdh.com/wp-content/uploads/sites/3/2020/02/200212_space_sound-e1581529629104.jpg?quality=60&strip=color)
Mysterious radio signal from space repeating every 16 days - Boston News, Weather, Sports | WHDH 7News
![Repeated signals from the center of the Milky Way could be aliens saying hello, new study claims | Space Repeated signals from the center of the Milky Way could be aliens saying hello, new study claims | Space](https://cdn.mos.cms.futurecdn.net/W2HH6LS4DhGArLJQ4Ygyv8-1200-80.jpg)