Scientists have long known that blackbodies produce radiation and that radiation creates a repulsive effect. However, according to a new studythere's another force at play, one that acts a bit like gravity and attracts objects to the blackbody. They're calling it "blackbody force."
Blackbodies, celestial objects that are perfectly non-reflective, shift the atomic energy of molecules around them in what's known as the Stark effect. This occurs when the electric field created by the blackbody radiation sends photons into surrounding molecules and atoms that often create the repulsive energy we're used to seeing around blackbodies. However, if the energy level of the photon is just right and the radiating blackbody is less than about 6,000-degrees Kelvin, it creates an attractive force that's greater than the radiation pressure and, in some cases, greater than the force of gravity./.../