"CoKu Tau 4 System"@en . . . . . . "Young star with protoplanetary disk. It was once thought that the youngest known planet could be forming in the hallowed out center, but it turns out that this was due to the center star being a binary star."@en . "Young star with protoplanetary disk. It was once thought that the youngest known planet could be forming in the hallowed out center, but it turns out that this was due to the center star being a binary star."@en . .