Giant Stealth Planet May Explain Rain of Comets from Solar System’s Edge

More scientists need a companion star – or at least a very big planet!

Our sun may have a companion that disturbs comets from the edge of the solar system — a giant planet with up to four times the mass of Jupiter, researchers suggest.

A NASA space telescope launched last year may soon detect such a stealth companion to our sun, if it actually exists, in the distant icy realm of the comet-birthing Oort cloud, which surrounds our solar system with billions of icy objects.

Read the full article at SPACE.COM