What are the dark spheres that reflect light from the Sun?

The dark spheres that reflect light from the Sun are likely referring to asteroids or planets in our solar system, which can appear as dark objects against the backdrop of space. These celestial bodies can reflect sunlight, making them visible from Earth, despite their generally low albedo or light-reflecting properties. Additionally, some of these objects may exhibit varying degrees of brightness depending on their surface composition and angle relative to the Sun and Earth.