In theory, it is possible to have a stationary spaceship at a specific point in space, but it would require overcoming several challenges.
In outer space, there is no absolute reference point for motion. Objects, including spaceships, move in relation to other objects or points of reference. To achieve a stationary position relative to a specific point in space, the spaceship would need to counteract all external forces acting upon it, such as gravity, solar radiation pressure, and gravitational interactions with other celestial bodies.
One approach to maintaining a stationary position in space is through the use of propulsion systems. By continuously firing thrusters or engines in a controlled manner, the spaceship can counteract external forces and maintain its position. This technique is known as stationkeeping.
However, there are limitations to this method. Fuel consumption becomes a significant concern, as continuously firing engines would require a vast amount of propellant over time. Additionally, the spaceship would need to account for factors like the gravitational pull of nearby celestial bodies and potential collisions with space debris, which could disrupt its stationary position.
Another possibility is to position the spaceship in a Lagrange point. Lagrange points are specific locations in space where the gravitational forces of two larger bodies (such as the Earth and the Moon or the Earth and the Sun) balance out the centrifugal force acting on a smaller object. Objects placed at these points can maintain a relatively stable position with respect to the two larger bodies.
Overall, achieving a truly stationary position in space is challenging and would require careful planning, precise calculations, and continuous adjustments to counteract external forces.