Like all comets, the blue ion tail always points AWAY from the Sun. Between July 17 and July 25, 2020 (when these images were taken), the Earth moved in its orbit around the Sun, and because of this, the position of the Sun in the sky also changed. Therefore, the tail has shifted.
An interesting fact: the direction of the ion tail of comet NEOWISE changed due to the movement of the Earth.
