A gravitational pull may bend rays from a star.Logical formLearned from2 sentences. Some gravitational lenses may be knowned.Logical formLearned from2 sentences. Gravitational interactions can be between planets.Logical formLearned from2 sentences. A gravitational interaction can be violent.Logical formLearned from2 sentences. Gravitational lenses can be astronomical.Logical formLearned from2 sentences. Gas may be stripped from a disk by a gravitational pull of a black hole.Logical formLearned from2 sentences. Gravitational forces may crush a (neutron star).Logical formLearned from2 sentences. Binary-star systems can be a source of gravitational energy.Logical formLearned from2 sentences. A gravitational lens may consist of a galaxy.Logical formLearned from2 sentences. A case can be between gravitational lenses.Logical formLearned from2 sentences. Gravitational lenses may be produced by galaxies.Logical formLearned from2 sentences. Stars may develop through a gravitational collapse of a core.Logical formLearned from2 sentences. A gravitational field can be from an object.Logical formLearned from2 sentences. Stars may be formed by a gravitational collapse of a cloud of gas.Logical formLearned from2 sentences. Some asteroids may dance in a gravitational pull.Logical formLearned from2 sentences.