Home Free-floating JuMBOs (Jupiter-Mass Binary Objects) don't conform to our present stellar and planetary formation theories. Credit: Gemini Observatory/Jon Lomberg Free-floating JuMBOs (Jupiter-Mass Binary Objects) don’t conform to our present stellar and planetary formation theories. Credit: Gemini Observatory/Jon Lomberg by Magic of science 2 years ago2 years ago Free-floating JuMBOs (Jupiter-Mass Binary Objects) don’t conform to our present stellar and planetary formation theories. Credit: Gemini Observatory/Jon Lomberg