Could there be a captured planet hiding in the Oort Cloud? :

Could there be a captured planet hiding in the Oort Cloud?

Could there be a captured planet hiding in the Oort Cloud?
earthsky.org - get the latest breaking news, showbiz & celebrity photos, sport news & rumours, viral videos and top stories from earthsky.org Daily Mail and Mail on Sunday newspapers.

Related Keywords

Brian Koberlein , Proxima Centauri , Amir Siraj , Avi Loeb At Harvard University , Monthly Notices Of The Royal Astronomy Society , Oort Cloud , Universe Today , Monthly Notices , Royal Astronomy , Kuiper Belt , Avi Loeb , Harvard University ,