![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
![Source of 'alien' radio signals may have been discovered by scientists studying the pulses that travel at the speed of light | Daily Mail Online Source of 'alien' radio signals may have been discovered by scientists studying the pulses that travel at the speed of light | Daily Mail Online](https://i.dailymail.co.uk/1s/2023/10/11/18/23100248-12620099-Researchers_used_the_Very_Large_Array_observatory_in_New_Mexico_-a-1_1697044621086.jpg)
Source of 'alien' radio signals may have been discovered by scientists studying the pulses that travel at the speed of light | Daily Mail Online
![Another mysterious radio burst in space is repeating a pattern. This one occurs every 157 days | CNN Another mysterious radio burst in space is repeating a pattern. This one occurs every 157 days | CNN](https://cdn.cnn.com/cnnnext/dam/assets/200608115951-wonders-of-the-universe-repeating-fast-radio-burst-super-tease.jpg)
Another mysterious radio burst in space is repeating a pattern. This one occurs every 157 days | CNN
![Radio signals from space: Astronomers locate radio bursts with accuracy of atomic clock | Science | News | Express.co.uk Radio signals from space: Astronomers locate radio bursts with accuracy of atomic clock | Science | News | Express.co.uk](https://cdn.images.express.co.uk/img/dynamic/151/590x/secondary/Radio-signals-from-space-astronomers-locate-radio-bursts-neutron-star-pulsars-space-news-2048159.jpg?r=1568041690207)
Radio signals from space: Astronomers locate radio bursts with accuracy of atomic clock | Science | News | Express.co.uk
![Astronomers detect a radio “heartbeat” billions of light-years from Earth | MIT News | Massachusetts Institute of Technology Astronomers detect a radio “heartbeat” billions of light-years from Earth | MIT News | Massachusetts Institute of Technology](https://news.mit.edu/sites/default/files/images/202207/MIT-ClearFRB-01-press.jpg)
Astronomers detect a radio “heartbeat” billions of light-years from Earth | MIT News | Massachusetts Institute of Technology
![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
![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)