Detection of an impact-generated dust cloud around Ganymede.

Presents research which measured submicrometer dust within a few radii of Jupiter's satellite Ganymede. Concentrations of dust in the ring systems of planets and along planetary orbits; Generation of individual dust grains; Directions, speeds and distribution of masses indicating dust from Ganymede; Ejection process resulting from hypervelocity impacts of dust onto Ganymede's surface; Dust near Callisto and Europa.