You could throw a baseball into orbit around Phobos!!
…And even catch it as it comes around again!!
Here is more detail:
“Phobos is the larger of the two and only about 10 miles in diameter. Since Phobos has so little mass, its gravity is minuscule. In fact, you could pick up a baseball and toss it into orbit around Phobos. And, if you threw it just right, you could turn around and catch it as it completed a loop!5
…Were they once asteroids that have since been captured by the gravity of Mars, as many astronomers believe? This is possible but involves an improbable chain of events. Moreover, captured asteroids are expected to have exaggerated, elliptical orbits, but Mars’ moons orbit in nearly perfect circles. As with so many aspects of the universe, the creative diversity of the Lord seems the best explanation for this puzzle. While posing a challenge for natural processes, the creation of unique moons in well-designed orbits is no problem for God.”
Read more about Mars here: https://www.icr.org/i/pdf/af/af1311.pdf