Latest Robin Canup Stories
New research suggests that the origin of Saturn's rings may be a case of cosmic murder.
The rings of Saturn could have formed after a moon the size of Titan crashed into the developing planet, a researcher from the Southwest Research Institute (SWRI) in Boulder suggested earlier this week.
While individual satellite properties vary, the systems all share a striking similarity: the total mass of each satellite system compared to the mass of its host planet is very nearly a constant ratio, roughly 1:10,000.
The evolution of Kuiper Belt objects, Pluto and its lone moon Charon may have something in common with Earth and our single Moon: a giant impact in the distant past.
- In medieval musical notation, a sign or neume denoting a shake or trill.