This will never end.
If there are space invaders out there, it won’t be long before they can no longer stage a sneak attack, thanks to a project to build the most sensitive radio telescope ever -- one that’s the size of a continent.
Known as The Square Kilometer Array
(SKA), it will explore the universe, identify any potential alien threats to our planet and hopefully answer some fundamental questions from astronomers. Its thousands of receptors, spaced roughly one kilometer apart, will be linked across an entire continent.
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