Mars has two moons, Phobos and Deimos. Scientists still debate whether these came from asteroids that passed close into Mars' ...

In recent years, Saturn has overtaken Jupiter as the planet with the most satellites in our solar system. How many moons does ...

For circumbinary exomoons, our research shows that it would be best to search in systems that have a wide binary separation, as stable moons were able to orbit at up to 10% of their planet's hill ...

8 planets orbit the Sun ... The solar system is also home to many other cosmic bodies including asteroids, moons and dwarf planets such as Pluto. What's this? Oh noooo… Stella: You should ...

There are gas giant planets bigger than Jupiter, and extremely hot planets that orbit so close to their stars that a year ...

Two of Saturn's icy moons are clearly ... gravitational field, the planet's gravity gradually becomes dominant, altering the moon's trajectory. Over time, the moon's orbit becomes more circular ...

At this point, ringed Saturn has the most moons of any planet in the solar system, but exactly how many moons does Saturn ... Over time, the moon's orbit becomes more circular and aligned with ...

"Every component of that system has features that violate some of our ideas about how planets work." For sure, it was a far-reaching recommendation: The planet Uranus and its moons should be NASA ...

Many more ISOs must have visited ... that the sun could capture an ISO or a rogue planet in the same way that some of the planets have captured moons. It all comes down to phase space.