Astronomers in Australia have just mapped 83% of the observable universe, in just 300 hours.

This new sky survey, which Australia’s national science agency (CSIRO) described in a statement as a “Google map of the universe” , marks the completion of a big test for the Australian Square Kilometre Array Pathfinder (ASKAP) radio telescope –- a network of 36 antennas rooted in the remote Western Australia Outback. While astronomers have been using ASKAP to scour the sky for radio signatures (including mysterious fast radio bursts) since 2012, the telescope’s full array of antennas has never been used in a single sky survey –- until now.

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