 SCP-2251 and SCP-2252 are shiny grey metallic spheres of unknown origin and composition, each with a diameter of 0.681 meters. SCP-2251 appears stable and motionless, but is in fact moving in a geosynchronous path above Earth, at the exact speed of Earth's rotation. Gravity, magnetism, and all other forces tested have had no effect upon it. It maintains position approximately 7.3 meters above the surface. No amount of force brought to bear on it in any direction has any effect upon its position. All tools and weaponry tested have no effect upon it physically. SCP-2252 follows a path around the Sun that is nearly synchronous with Earth's. Earth rotates under it, giving it the illusory appearance of traveling around the Earth at velocities usually ranging from 1,600 to 2,000 kilometers per hour, depending on its current relative altitude.