Fill in the blanks.

Dark Matter___ absorb light, ___, emit radiation, and ___ been observed directly.

Dark Matter does not absorb light, does not emit radiation, and has not been observed directly.

Dark Matter does not absorb light, does not emit radiation, and has not been observed directly.

To fill in the blanks, we need to understand the properties of dark matter. Dark matter does not absorb light, it does not emit radiation, and it has not been observed directly. Dark matter gets its name because it does not interact with light, so it does not absorb or emit it. The nature of dark matter remains a mystery, and its existence is inferred through its gravitational effects on visible matter. Scientists study its effects on galaxies, galaxy clusters, and the cosmic microwave background to learn more about its properties.