The tiny space rock New Horizons is headed for may have a moon
The next destination for NASA’s New Horizons spacecraft is a small space rock in the Kuiper belt called MU69. Now we know it may have an even smaller moon
Mysterious streaks seen on Saturn’s moons could be ancient rings
A series of parallel lines on Saturn’s moons Dione and Rhea have scientists scratching their heads. Could they be a sign of rings that crashed to the surface?
Astronaut wee could show us how the plumes on Enceladus work
The way spaceships vent urine and water may be a good stand-in for studying how jets of vapour escape the hidden ocean on one of Saturn’s icy moons
A gaggle of 7 moons keep Saturn’s rings from breaking apart
The gravity from seven of its moons stops Saturn’s bright outer ring from spreading out and dispersing into space, according to Cassini spacecraft measurements