Meteorite
At first some people called it the "Disaster Stone." However, after people observed its general structure, more people liked to call it the "Disaster Stone."
When people learned about the "destiny" of the earth, they began to trace the cause of the asteroid's disturbance, and finally discovered "it" through calculation. "It" has passed through the asteroid belt and is moving towards the edge of the solar system at a constant speed. In the absence of other external disturbances, it is expected to pass the orbit of Pluto in one year and rub the edge of the solar system.
When the little guy entered the range that could be directly observed, Baldy (crossed out) people discovered that "it" was a relatively regular hollow sphere with a diameter of about 50 meters. The surface was made of an unknown golden metal (the density is slightly greater than gold). The interior was composed of several layers of golden metal (the closer to the center, the denser it became). The material of the hollow part was temporarily unknown.
After hearing the news, some people wanted to intercept it. "I want to sell it so that I can enjoy it for the rest of my life." Said a jewelry merchant. Some scientists are more concerned about "its" internal structure. "We don't know whether it is truly hollow. We need to make a conclusion after getting the thing. But its outer shell will definitely fetch a good price."
Some people are more interested in its origin, "Its arrival may be a pattern, but it is by no means accidental. This structure is definitely not naturally formed. Maybe it is a gift from some civilization... If there is such a friendly civilization."
Concept: human nature