moons

  • Move over Jupiter – Saturn has more moons

    A Twitter campaign is calling for help to name them.

    Move aside Jupiter. Saturn now has the largest number of known moons of any planet in the Solar System. On 7 October...

    Astronomy October 9, 2019
  • ‘Ploonets’ may explain astronomical mysteries

    Researchers suggest key role for exiled moons.

    Moons ejected from orbits around gas giant exoplanets could explain several astronomical mysteries, an international ...

    Astronomy July 18, 2019
  • Planet Nine search finds 12 new Jovian moons

    New discoveries include an oddball and the most distant known object in the solar system. Richard...

    Valetudo, the Roman goddess of health and hygiene. Now also a small moon travelling in the wrong direction.NLM / Scie...

    Space July 17, 2018
  • Saturn’s moons created by violent collisions

    Modelling supports hypothesis that the planet’s young moons formed from crashes between others. L...

    Saturn’s inner moons were likely formed by cosmic smash-ups between an earlier generation of moons, according to new ...

    Space May 22, 2018
  • The shadow of Amalthea

    One of Jupiter’s lesser known moons casts a shadow on the gas giant.

    Jupiter’s moon Amalthea casts a shadow on the clouds of the gas giant.NASA/JPL-Caltech/SwRI/MSSS/Gerald Eichstädt/Seá...

    Space October 29, 2017
  • Full moon, Jupiter, and Jupiter’s moons

    Earth’s moon hangs in the sky above Jupiter and its moons.

    Earth’s moon, Jupiter, and Jupiter’s moonsGöran StrandEarth’s full moon looms large in the night’s sky sharing the fr...

    Space April 19, 2017
  • Wavy rings point to two undiscovered moons at Uranus

    A couple of moonlets would bring the gas giant’s moon tally to 29.

    The Hubble Space Telescope took this false-colour image of Uranus in 2003. The planet's faint rings and moons have be...

    Space October 23, 2016
  • Where did Mars' moons come from?

    Phobos and Deimos once had a bigger sibling, but today they’re sole survivors of a huge collision...

    Colour-enhanced images of Phobos (bottom) and Deimos – the last remaining Martian moons. Phobos measures around 20 ki...

    Space July 4, 2016
  • Icy moons cracked by short sharp tidal tugs: study

    Simulations show a close call with a similar object can tear an icy moon’s crust. Belinda Smith r...

    The New Horizons spacecraft snapped this image of Charon, Pluto's largest moon, as it flew by in July 2015.NASACracks...

    Space May 26, 2016
  • The search for planets beyond Pluto

    Some scientists are convinced more planets exist in our Solar System. By Richard A. Lovett.

    Artist's concept of the New Horizons spacecraft during its planned encounter with Pluto and its largest moon, Charon....

    Space April 20, 2015