When you buy through links on our articles, Future and its syndication partners may earn a commission. An illustration of confirmed dwarf planets and their moons. From left to right: Pluto (with ...

Dwarf planet 2023 KQ14, Ammonite, has a stable orbit that challenges the hypothesis of the mysterious Planet Nine.

"It shows that Makemake is not an inactive remnant of the outer solar system, but a dynamic body where methane ice is still ...

When you buy through links on our articles, Future and its syndication partners may earn a commission. New research based on NASA's Dawn mission data suggests the dwarf planet Ceres, once deemed ...

Pluto's unusual eccentricity and tilt is likely due to its interactions with neighboring Neptune and other giant planets, ...

In its youth, the dwarf planet Ceres may have brewed a chemical banquet beneath its icy crust.

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

Scientists have detected methane gas glowing faintly above Makemake, an icy dwarf planet smaller and farther than Pluto in space. Until now, Pluto was the only object that far out in the solar system ...

A possible cousin of Pluto seems to be circling the far reaches of the solar system. The dwarf planet candidate 2017 OF201 travels in a superwide orbit, with the sun relatively near one end of its ...

Astronomers using the Hubble Space Telescope have observed a white dwarf - a highly compact stellar ember - that appears to ...

Dwarf planet Ceres now appears less like a dead rock and more like a world that may have briefly brimmed with potential for life ...