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A dense ring of the trans-Neptunian object Quaoar outside its Roche limit
By Chrystian Luciano Pereira, Felipe Braga Ribas & Bruno Sicardy
Dwarf planet hosts a ring that's unexpectedly far from the planet
By John Timmer
A new ring system discovered in our solar system
Astronomers Discover Unexpected Ring around Distant Dwarf Planet
By Jeff Hecht