Science News, April 17, 2017, speculates that Mars is smaller than it should be because Jupiter’s gravity meddled with the rock formation of Mars and pulled it away, and in the process created ts 67 moons.
The largest of Jupiter’s moon are Europa, Ganymede, Io and Calisto and are called satellites because the astrophysicist, Galileo Galilei discovered them in 1621. Saturn, btw, has only 62 moons.
The diminutive Red Planet has two, Phobos, from which the words phobia and fear derive from, and Deimos, from which demon does.
PS. The picture is from the 2021 Landing on Mars, and the article from 2017.