This snapshot depicts the movement of Jupiter’s Galilean moons around the planet over the course of two hours. The moons orbit quickly – notice the change in Io's position in such a short time span. If you observe the moons over the course of several evenings using binoculars or a telescope, you will see them weave back and forth around Jupiter.
Curious to find out more about how to observe Jupiter in the night sky? Take a look at our dedicated guide, written for all space enthusiasts, from complete stargazing beginners to amateur astronomers.