Our Solar System is home to many unique planetary bodies, including protoplanets and dwarf planets. Here are the unique ...

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

At the vast edge of the solar system, Pluto has long been perceived as a cold and lonely dwarf planet. However, a recent ...

Astronomers have uncovered a massive new trans-Neptunian object, 2017 OF201, lurking at the edge of our solar system. With an orbit stretching 25,000 years and a size that may qualify it as a dwarf ...

Makemake supposedly exhibits a diameter of 890 miles, making it two-thirds the size of Pluto, according to Earth.com. Past reports claimed that the astronomical body did not exhibit a substantial ...

A new trans-Neptunian object, 2017 OF201, has been found with a vast orbit and potential dwarf planet size. The finding hints at more hidden bodies beyond Neptune. A research team led by Sihao Cheng a ...

The solar system lost its ninth planet back when Pluto was demoted to a dwarf planet, but research might indicate that there ...

A team of astronomers believe they may have discovered a new dwarf planet—just like Pluto—on the edge of our solar system. The object—which orbits out beyond Neptune—has been named "2017 OF201" by the ...

"Makemake is one of the largest and brightest icy worlds beyond Neptune, and its surface is dominated by frozen methane," ...

"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, ...