Astronomers capture 'alien' radio signals

Astronomers have speculated that a mystery radio signal could come from distant alien civilisations.

Proof of alien life?
Proof of alien life?

Radio dishes on Earth have captured a mystery radio signal from space.

This is the first time the signal has been captured live and although the source is still unknown, astronomers have speculated that it could come from distant alien civilisations.

Emily Petroff, a PhD candidate, explained: "[Previous] bursts were generally discovered weeks or months or even more than a decade after they happened! We're the first to catch one in real time."

The sources of the high-energy radio bursts - which only last for a few milliseconds - are said to emit as much energy in that time as the Sun does in an entire day.

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