Mysterious planetary mass objects that wander the cosmos alone could be created when young star systems clash. They aren't planets or stars, but are in a cosmic class of their own.

A phantom “Super-Jupiter” 13 times more massive than our solar system’s gas giant is drifting through the cosmos around 20 ... floating planetary-mass object” known as SIMP 0136 has ...

In the vast expanse of our universe, certain celestial bodies defy conventional classification. This challenges our ...