Scientists have picked up radio signals in a galaxy billions of light-years away : NPR
Arecibo Message: 1st International radio message to space
Message Sent Into Space (And What We've Heard Back) | Memorial Spaceflights
Weird space radio signal tracked to its source for the first time | New Scientist
How do you work out if a signal from space is a message from aliens?
Broadcasting a Message
Message Sent Into Space (And What We've Heard Back) | Memorial Spaceflights
Has Mysterious Signal From Space Finally Been Explained?
Astronomers spot record-breaking radio signal that took 8 billion years to reach Earth: "Mind-blowing" - CBS News
Arecibo Message
It's the 25th anniversary of Earth's first attempt to phone E.T. | Cornell Chronicle
Earth has received its first ever 'alien message' | indy100
Mysterious radio signal from space is repeating every 16 days | CNN
40 Years Ago, Earth Beamed Its First Postcard to the Stars
Message Sent Into Space (And What We've Heard Back) | Memorial Spaceflights
Cosmic source found for mysterious 'fast radi | EurekAlert!
Scientists find deep space radio signals all the time. Here's what they mean. | Mashable
Signals from space: FOUR times scientists believed we were contacted by aliens after radio signals | Daily Mail Online
Astronomers spot record-breaking radio signal that took 8 billion years to reach Earth: "Mind-blowing" - CBS News
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Was the "Wow!" Signal From Aliens or a Comet Flyby? | Smart News| Smithsonian Magazine
Radio signal from space has been reaching Earth for years, study finds
New project will practice decoding message from intelligent aliens | Space
A Stronger Message | by Brian Koberlein
Wow! signal - Wikipedia
