Moons

A subsatellite, also known as a submoon, or moonmoon, or a schmoon, is a "moon of a moon" or a hypothetical natural satellite that orbits the moon of a planet.It is inferred from the empirical study of natural satellites in the Solar System that subsatellites may be rare, albeit possible, elements of planetary systems.

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Could Planets Orbiting Two Stars Have Moons?

Are there hidden oceans inside the moons of Uranus? Their wobbles could tell us

A Celestial Colossus: Peering Into Jupiter’s Kingdom of Moons and Storms

NASA Wants Students’ Help Designing Missions to Other Moons

Exploring Alien Oceans: NASA’s Bold Mission to Uranus’ Moons

Mars may have made its 2 moons by ripping an asteroid apart

The Moons of Mars May Actually Be Fragments of Something Much Bigger

New Supercomputer Simulation Explains How Mars Got Its Moons

An Asteroid’s Destruction May Have Given Mars Rings, Then Moons

Making Mars’ Moons: Supercomputers Offer ‘Disruptive’ New Explanation

Asteroid pieces brought to Earth help reveal how our solar system's planets and moons grew

Planetary Researchers Examine Tidal Effects on Interiors of Planets and Their Moons

Jupiter's moons hide giant subsurface oceans − Europa Clipper is one of 2 missions on their way to see if these moons could support life

Meteor Strikes Unveil Hidden Water Flows on Moons and Asteroids

What next for NASA's Europa Clipper? The long road to Jupiter and its moons

Tiny Black Holes Could Lurk Inside Asteroids, Moons, or Even Planets Like Ours

Some of Uranus' moons might be able to support life. Here's what a mission might reveal

Why Do So Many Tiny Asteroids Have Moons?

Massive, Ancient Asteroid May Have Smashed Into One of Jupiter's Moons

Wait a Minute. Why Don't Any of The Solar System's Moons Have Rings?