Moons
Can a moon have a moon? Here's what the science says
Some planets have moons. That much we know. But can these natural satellites themselves have moons in orbit?
Interview | Voyager scientist Linda Morabito
Linda Morabito reveals how she made one of the Voyager mission's biggest discoveries: a volcano on Jupiter's moon Io.
Observing guide | See Jupiter's moons transit the gas giant
Observe Jupiter's Galilean moons this month.
null
undefined
Astronomers discover 128 new moons at Saturn
Which planet has the most moons?
A guide to the number of moons in the Solar System, and which planet is currently king of the moons.
Hera spacecraft images of Mars moon Deimos
Mars's moon Phobos is spiralling towards the Red Planet and may one day form a ring system
Mars’s moon Phobos is being pulled towards its host in a process that could eventually tear it apart and create rings around the Red Planet.
NASA's Europa Clipper launches on its way to study Jupiter's icy moon
The launch of Europa Clipper will see a new chapter in the exploration of this icy moon.
Gallery | Jupiter's Galilean moons
Facts about and images of Jupiter's four largest satellites, the Galilean moons.
How to observe Saturn's moons
Which of Saturn's moons are brightest, and what sort of telescope do you need to see them? Find out in our observing guide.
Black on white or white on black? The mystery of Saturn's weird two-toned moon
Patrick Moore reveals interesting facts about Saturn's strange black and white satellite in this archive article.
Japan is sending a spacecraft to Mars's moons and returning a sample for study back on Earth
Japan’s Martian Moons eXploration is a daring mission to moon Phobos that will bring back the first-ever samples from the Mars system.
Gaia spacecraft may have found over 350 new moons in our Solar System, and they're all orbiting asteroids
How many moons does Mars have? A guide to the Martian satellites Phobos and Deimos
Often overlooked, the moons of Mars, Phobos and Deimos, are as enigmatic as any other.
Juno images of Jupiter's icy moon Europa suggest a subsurface ocean, wandering icy shell and rupturing plumes
New images of icy moon Europa reveal some intriguing features.
NASA confirms it's sending its Dragonfly drone-like spacecraft to Saturn's moon Titan
Saturn's largest moon is an Earth-like world that likely has conditions suitable for supporting life. A new NASA spacecraft will spend almost three years studying its surface.
Saturn's moon Mimas has an ocean
A newly discovered ocean on Saturn’s moon Mimas could provide a unique place to study the habitability of our Solar System.
Jupiter's moon Europa generates enough oxygen to keep 1 million humans breathing for a day
Oxygen could be making its way into the liquid ocean beneath the Jovian moon's icy surface.
Saturn's moon Titan may have 'magic' disappearing islands floating on its liquid methane seas
Transient isles form then dissolve on Saturn moon’s seas
Moons of Uranus
Discover facts about Uranus's moons, when they were discovered, who they're named after, which are the biggest and smallest.
Jupiter and moon Io have inspired a new way of detecting exoplanets
Jupiter and Io’s interactions could provide the basis for detecting planets beyond our Solar System
How the JUICE mission will explore Jupiter and its icy moons
JUICE will visit Galilean moons Europa, Callisto and Ganymede, with the latter a particular target for exploration.
Jupiter's largest moons seen in sharpest views captured by an Earth-based telescope
Europa and Ganymede look incredible in brand new images captured using the Very Large Telescope.
Deimos: the strange orbit of Mars's moon
The Martian moon Deimos has an unusual gravitational tilt, suggesting an interaction with another satellite in its past.