Found 43 results for "Planetary rings"
by Larry W. Esposito
One of the most enduring symbols of space exploration is a planet surrounded by a ring.
by N. N. Gorʹkavyĭ, Alexei M. Fridman
Practically anything which rotates and in our Universe practically everything rotates sooner or later becomes a disc.
by Tex.) Conference on Multi-Ring Basins: Formation and Evolution (1980 : Houston