fromMail Online
7 months agoThe most unexplained signals received on Earth that could be aliens
Many of these radio waves and other forms of electro-magnetic radiation can be attributed to natural phenomena such as pulsars, colliding stars and the sun. But some, to this day, remain unexplained - and experts say they could be extraterrestrial in origin. The most renowned is the famous 'WOW' signal that was first detected in 1977. At the time, astronomers discovered a mysterious signal beaming from space that was so powerful it prompted astronomer Jerry Ehman to write 'Wow!' on the telescope's readout.
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