An Earth-like planet may be hanging out in the outer solar system - study
A planet about 1.5-3 times as massive as Earth could help explain peculiar properties of the outer solar system.
Artwork showing a section of Kuiper Belt, crowded with the icy cores of potential comets.(photo credit: ESO/M. Kornmesser/Flickr)ByJERUSALEM POST STAFFUpdated:
