Flag of the Earth
The flag of Earth’s flag is a photograph of the Earth Day Earth image “Blue marbles” taken by NASA’s Apollo 17 spacecraft in space. It is placed on a dark blue background. It is created by John. McNeil was designed for the first Earth Day event in 1969. This banner is a symbol of the environmental protection movement. Event sign
The symbol of Earth Day is the green Greek letter Θ on a white background.
