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From 20 January to 20 February 2016, all five visible planets will sit in a line from the horizon to the moon – for the first time since 2005.
Dr Alan Duffy, research fellow at Swinburne University in Melbourne, said that this reasonably rare alignment is “essentially a quirk” of the universe. All the planets sit on a flat plane but have different yearly cycles – so for all five visible planets to happen to line up is “something well worth seeing,” he said.