Bending of light Near a massive object, GR predicts that light will be deflected. Time delay of light Near a massive object, GR predicts that light will travel a longer path due to curved space-time. Verified by timing signals from Viking spacecraft passing by the Sun. Gravitational Redshift Light from the surface of a massive object will be redshifted. Escape Velocity Escape velocity is the speed an object would need to escape from a celestial body.
Gravity is low on an asteroid.
You could throw a ball off it, or jump off it. The escape velocity depends on mass.