The force of gravity between two objects, such as an astronaut and a space shuttle, is determined by their masses and the distance between them, according to Newton's law of universal gravitation.
When the astronaut is moving away from the space shuttle, the distance between the two objects increases. As the distance increases, the gravitational force between them decreases. However, the gravitational force applies equally to both the astronaut and the space shuttle.
So, the correct response would be: It goes down for both the astronaut and the space shuttle.