⁣⁢As black holes cannot be observed directly, their presence is inferred from their interaction with surrounding matter and with light and other types of electromagnetic radiation.⁤⁣

⁣⁢The reverse of the coin shows a colorful depiction of a black hole's appearance. A real piece of meteorite is placed in the center of the coin. The reverse of the coin is concave, mimicking a black hole's absorption of its surroundings.⁤⁣