Why is our Moon so massive compared with Earth, and how might that configuration happen elsewhere?
moons
Posted inNews
Where Moons Are Made
The young, growing planet PDS 70 c has enough material swirling around it to make at least three Moon-sized moons.
Posted inNews
A Window into the Weather on Titan
Cassini’s final flybys of Saturn’s largest moon may have captured a temperature drop due to rainfall, one of the first observations of weather changes on Titan.
Posted inNews
Do Uranus’s Moons Have Subsurface Oceans?
Scientists tested whether a classic technique could detect subsurface oceans on the moons of Uranus. In this scenario, the planet’s oddball magnetic field offers a big advantage.
Posted inScience Updates
Planetary Cave Exploration Progresses
Terrestrial caves offer scientific and engineering insights and serve as testing grounds for future forays by humans and robots into caves on other worlds.
Posted inNews
On Thin Ice: Tiger Stripes on Enceladus
Saturn’s moon Enceladus boasts fierce tiger stripes around its south pole, a mystery that has long puzzled scientists. New research explores the stripes by examining how the moon’s ice breaks.
Posted inResearch Spotlights
Jupiter’s Ocean Moons Raise Tidal Waves on One Another
New research considers the effect of Jupiter’s Galilean moons on each other’s oceans for the first time.
Posted inResearch Spotlights
Electron Density near Enceladus Shows Orbital Variation
The electron density peaks well after the activity of the moon’s distinctive south polar ice plume reaches its maximum, but the cause of the lag remains puzzling.
Posted inEditors' Highlights
Using Saturn’s Rings as a Seismometer
The Cassini spacecraft observed spiral density waves in the rings of Saturn which can be used to probe its interior structure and rotation.