The small, faraway world we call Quaoar is pretty peculiar. It is egg-shaped, and it also possesses a moon and two rings. In particular, the rings are where no ring should be; Quaoar is clearly ...

Quaoar’s ring is much smaller than Saturn’s but no less intriguing. It is not the only ring system known to exist around a dwarf or minor planet. Two others – around Chariklo and Haumea – have been ...

Astronomers have discovered what they think may be another moon orbiting a distant dwarf planet called Quaoar. This small, icy, egg-shaped planet in the far reaches of our solar system, beyond Neptune ...

Deep in the outer solar system, billions of miles from Earth, lurks a realm of small, icy worlds called dwarf planets. Astronomers know relatively little about these dim and distant objects, but in ...