![Yes, mysterious radio signal from space detected in 1977 – but probably caused by comet - Africa Check Yes, mysterious radio signal from space detected in 1977 – but probably caused by comet - Africa Check](http://africacheck.org/sites/default/files/2019/12/COMETDONE.png)
Yes, mysterious radio signal from space detected in 1977 – but probably caused by comet - Africa Check
![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)
Repeated signals from the center of the Milky Way could be aliens saying hello, new study claims | Space
![Mysterious radio signal detected from exoplanet in deep space: Could give new 'way to examine alien worlds' | Fox News Mysterious radio signal detected from exoplanet in deep space: Could give new 'way to examine alien worlds' | Fox News](https://a57.foxnews.com/static.foxnews.com/foxnews.com/content/uploads/2020/12/1200/675/1216_exoplanet.jpg?ve=1&tl=1)