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

Earth has a newly-discovered neighbor in the solar system. But the heavenly body – possibly a dwarf planet à la Pluto – isn't a frequent visitor. Located beyond Neptune, its extreme orbit ...

Pluto receives enough sunlight to be about as bright as midday on Earth during specific times, despite being a dwarf planet 7 ...

Using Pluto as an example, this celestial body, once considered the ninth planet, was redefined as a dwarf planet in 2006.

Before Pluto was discovered, it was predicted. Astronomers had observed that massive objects can affect the orbits of their neighbors and, after seeing deviations in the orbits of Uranus and Neptune, ...

Later, it was reclassified as a dwarf planet, yet its mysterious charm has not diminished at all. Why is that? Because Pluto's complex and elusive terrain is like a mysterious key that may hold the ...

The James Webb Space Telescope (JWST) has discovered that a hazy sky over frozen Pluto is helping to cool the dwarf planet's atmosphere, while at the same time giving methane and other organic ...

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 ...

New observations suggest that the dwarf planet Makemake is surrounded by faintly glowing methane gas. Scientists are unsure ...

Hubble discovered a white dwarf planet devouring a Pluto-like object, revealing debris rich in water and nitrogen.