In Six New Rogue Worlds, Webb Telescope Finds More Star Birth Clues
An international collaboration that included the University of Michigan has spotted six likely rogue worlds—objects with planetlike masses but untethered from any star’s gravity—using the James Webb Space Telescope, or JWST.
The discovery includes the lightest rogue planet candidate ever identified with a dusty disk around it. The elusive objects offer new evidence that the same cosmic processes that give birth to stars may also play a common role in making objects only slightly bigger than Jupiter.