A Southwest Research Institute-led team has discovered an elusive, dark moon orbiting Makemake, one of the “big four” dwarf planets populating the Kuiper Belt region at the edge of our solar system.

"The profile of the occultation was most consistent with it being a new satellite — a new moon — going around Quaoar." ...

Astronomers have discovered what they think may be another moon orbiting a distant dwarf planet called Quaoar. This small, ...

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 ...

The Sun is orbited by eight planets, at least five dwarf planets, tens of thousands of asteroids, and around three trillion comets and icy bodies. Although not all objects of the solar system are as ...

NASA’s Hubble Space Telescope recently discovered a small moon orbiting an icy dwarf planet in the distant reaches of our solar system. MK 2 is 100 miles in diameter and is at least 13,000 miles from ...

Though no direct evidence of life has been found, models suggest Ceres had hot water shooting into its underground oceans ...