And a Twitter campaign is calling for help to name them. Richard A Lovett reports.
Australian and South American researchers suggest ‘ploonets’ are unseen actors in distant solar systems.
New discoveries include an oddball and the most distant known object in the solar system. Richard A Lovett reports.
Modelling supports hypothesis that the planet’s young moons formed from crashes between others. Lauren Fuge reports.
One of Jupiter’s lesser known moons casts a shadow on the gas giant.
Earth’s moon hangs in the sky above Jupiter and its moons.
A couple of moonlets would bring the gas giant’s moon tally to 29.
Phobos and Deimos once had a bigger sibling, but today they’re sole survivors of a huge collision 4.5 billion years ago, according to new simulations. Belinda Smith reports.
Simulations show a close call with a similar object can tear an icy moon’s crust. Belinda Smith reports.
Some scientists are convinced more planets exist in our Solar System. By Richard A. Lovett.